refactor: Add Alpine.js registration to existing TypeScript modules

Added Alpine.global() registration to enable template access to functions:

- admin.ts: Added Alpine for scan, stats, and settings functions
- api-explorer.ts: Already had Alpine (kept as is)
- bookshelf.ts: Added Alpine for library/bookshelf interactions
- collections.ts: Added Alpine for collection management
- conflicts.ts: Added Alpine for conflict resolution
- device-management.ts: Added Alpine with event delegation for dynamic content
- header.ts: Added Alpine for theme dropdown and user menu
- library.ts: Added Alpine registrations
- linking.ts: Added Alpine registrations
- queue.ts: Added Alpine for queue operations
- search.ts: Added Alpine registrations
- themeDropdown.ts: Added Alpine for theme switching

Each module now exports functions both traditionally and via Alpine.global() for template access.

web/src/themeDropdown.ts

@@ -1,5 +1,9 @@
 // Theme dropdown active indicator management
 
+import { Alpine } from "./alpine";
+import { changeThemeTo, toggleThemeDropdown as originalToggle } from "./header";
+import { updateWoodPanelingIndicators } from "./woodPaneling";
+
 // Update visual indicators for theme buttons
 const updateThemeIndicators = (): void => {
   const currentTheme = localStorage.getItem("theme") || "tokyo-night";
@@ -23,26 +27,21 @@ const updateThemeIndicators = (): void => {
   });
 };
 
-// Make function available globally
-(window as any).updateThemeIndicators = updateThemeIndicators;
-
 // Update on dropdown toggle
-const originalToggleThemeDropdown = (window as any).toggleThemeDropdown;
-if (originalToggleThemeDropdown) {
-  (window as any).toggleThemeDropdown = () => {
-    originalToggleThemeDropdown();
-    updateThemeIndicators();
-    (window as any).updateWoodPanelingIndicators?.();
-  };
+export function initializeThemeDropdown() {
+  // Call original function
+  originalToggle();
+  // Then update indicators
+  updateThemeIndicators();
+  updateWoodPanelingIndicators();
 }
 
 // Update after theme changes
-const originalChangeThemeTo = (window as any).changeThemeTo;
-if (originalChangeThemeTo) {
-  (window as any).changeThemeTo = (...args: unknown[]) => {
-    originalChangeThemeTo(...args);
-    updateThemeIndicators();
-  };
+export function initializeChangeThemeTo(theme: string): void {
+  // Call original function from header.ts
+  changeThemeTo(theme);
+  // Then update indicators
+  updateThemeIndicators();
 }
 
 // Auto-initialize when DOM is ready
@@ -53,3 +52,11 @@ if (typeof document !== "undefined") {
     updateThemeIndicators();
   }
 }
+
+Alpine.global("themeDropdown", {
+  initializeDropdown: initializeThemeDropdown,
+  changeTheme: initializeChangeThemeTo,
+  updateIndicators: updateThemeIndicators,
+});
+
+export { updateThemeIndicators };