bugfix(frontend): added use:link to the logos href to prevent full page reload

Bug: Every click of the logo would consistently do a full page reload
- Logo clicking now uses svelte-spa-router's link

Apply consistent formatting to Header.svelte:
- Add semicolons to all statements
- Improve JSX/HTML attribute formatting for better readability
- Add link import from svelte-spa-router for SPA navigation
- Format multi-line attributes with proper indentation

These changes improve code consistency and maintainability without
altering any functionality.

frontend/src/helperComponents/Header.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    import Search from "./Search.svelte"
+    import Search from "./Search.svelte";
     import {
         aniListLoggedIn,
         loginToAniList,
@@ -7,55 +7,81 @@
         loginToSimkl,
         malLoggedIn,
         simklLoggedIn,
-    } from "../helperModules/GlobalVariablesAndHelperFunctions.svelte"
+    } from "../helperModules/GlobalVariablesAndHelperFunctions.svelte";
     import AvatarMenu from "./AvatarMenu.svelte";
-    import logo from "../assets/images/AniTrackLogo.svg"
+    import logo from "../assets/images/AniTrackLogo.svg";
+    import { link } from "svelte-spa-router";
 
-    let isAniListLoggedIn: boolean
+    let isAniListLoggedIn: boolean;
-    let isSimklLoggedIn: boolean
+    let isSimklLoggedIn: boolean;
-    let isMALLoggedIn: boolean
+    let isMALLoggedIn: boolean;
 
-    aniListLoggedIn.subscribe((value) => isAniListLoggedIn = value)
+    aniListLoggedIn.subscribe((value) => (isAniListLoggedIn = value));
-    simklLoggedIn.subscribe((value) => isSimklLoggedIn = value)
+    simklLoggedIn.subscribe((value) => (isSimklLoggedIn = value));
-    malLoggedIn.subscribe((value) => isMALLoggedIn = value)
+    malLoggedIn.subscribe((value) => (isMALLoggedIn = value));
 </script>
 
 <nav class="border-gray-200 bg-gray-900">
-    <div class="max-w-screen-xl flex flex-wrap items-center justify-between mx-auto p-4">
+    <div
+        class="max-w-screen-xl flex flex-wrap items-center justify-between mx-auto p-4"
+    >
         <div class="flex items-center space-x-3 rtl:space-x-reverse">
-                <a href="/"><img src={logo} class="h-8" alt="AniTrack Logo"/></a>
+            <a href="/" use:link
+                ><img src={logo} class="h-8" alt="AniTrack Logo" /></a
+            >
         </div>
-        <div class="flex items-center min-[950px]:order-2 space-x-3 min-[950px]:space-x-0 rtl:space-x-reverse">
+        <div
+            class="flex items-center min-[950px]:order-2 space-x-3 min-[950px]:space-x-0 rtl:space-x-reverse"
+        >
             <div class="min-[950px]:block min-[950px]:mr-4">
                 <Search />
             </div>
-            <AvatarMenu/>
+            <AvatarMenu />
-            <button on:click={() => {
+            <button
-                let menu = document.querySelector("#navbar-user")
+                on:click={() => {
-                menu.classList.toggle("hidden")
+                    let menu = document.querySelector("#navbar-user");
-            }} type="button"
+                    menu.classList.toggle("hidden");
+                }}
+                type="button"
                 class="inline-flex items-center p-2 w-10 h-10 justify-center text-sm rounded-lg min-[950px]:hidden focus:outline-none focus:ring-2 text-gray-400 hover:bg-gray-700 focus:ring-gray-600"
-                    aria-controls="navbar-user" aria-expanded="false">
+                aria-controls="navbar-user"
+                aria-expanded="false"
+            >
                 <span class="sr-only">Open main menu</span>
-                <svg class="w-5 h-5" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" fill="none"
+                <svg
-                     viewBox="0 0 17 14">
+                    class="w-5 h-5"
-                    <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2"
+                    aria-hidden="true"
-                          d="M1 1h15M1 7h15M1 13h15"/>
+                    xmlns="http://www.w3.org/2000/svg"
+                    fill="none"
+                    viewBox="0 0 17 14"
+                >
+                    <path
+                        stroke="currentColor"
+                        stroke-linecap="round"
+                        stroke-linejoin="round"
+                        stroke-width="2"
+                        d="M1 1h15M1 7h15M1 13h15"
+                    />
                 </svg>
             </button>
         </div>
-        <div class="hidden items-center justify-between w-full pb-4 min-[950px]:pb-0 min-[950px]:flex min-[950px]:w-auto min-[950px]:order-1 border border-gray-700 min-[950px]:border-0 bg-gray-800 min-[950px]:bg-transparent rounded-lg" id="navbar-user">
+        <div
-            <ul class="flex flex-col font-medium pb-6 min-[950px]:p-0 mt-4 min-[950px]:space-x-8 rtl:space-x-reverse min-[950px]:flex-row min-[950px]:mt-0">
+            class="hidden items-center justify-between w-full pb-4 min-[950px]:pb-0 min-[950px]:flex min-[950px]:w-auto min-[950px]:order-1 border border-gray-700 min-[950px]:border-0 bg-gray-800 min-[950px]:bg-transparent rounded-lg"
+            id="navbar-user"
+        >
+            <ul
+                class="flex flex-col font-medium pb-6 min-[950px]:p-0 mt-4 min-[950px]:space-x-8 rtl:space-x-reverse min-[950px]:flex-row min-[950px]:mt-0"
+            >
                 <li>
                     {#if !isAniListLoggedIn}
                         <button on:click={loginToAniList}>
-<!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
+                            <!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
                             AniList Login
                         </button>
                     {/if}
                     {#if !isMALLoggedIn}
                         <button on:click={loginToMAL}>
-<!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded min-[950px]:p-0 text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
+                            <!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded min-[950px]:p-0 text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
                             MyAnimeList Login
                         </button>
                     {/if}
@@ -63,14 +89,14 @@
                 <li>
                     {#if !isSimklLoggedIn}
                         <button on:click={loginToSimkl}>
-<!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded min-[950px]:p-0 text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
+                            <!--                                class="block py-2 px-3 w-full min-[950px]:w-auto rounded min-[950px]:p-0 text-gray-300 min-[950px]:hover:text-blue-500 hover:bg-gray-700 hover:text-white min-[950px]:hover:bg-transparent border-gray-700">-->
                             Simkl Login
                         </button>
                     {/if}
                 </li>
             </ul>
             <div class="flex justify-center min-[950px]:hidden">
-                <Search/>
+                <Search />
             </div>
         </div>
     </div>