Add dashboard redesign, custom section builder, and enhanced search functionality

Features:
- Complete dashboard redesign with improved UI components and layout
- Implement custom section builder for personalized book organization
- Add new events tracking system for user interactions
- Enhance search functionality with better static search.js
- Update TypeScript type definitions for API responses

Backend:
- Update Go dependencies in go.mod
- Add new frontend routes in router

Templates:
- Update admin and dashboard templates with new components

Frontend:
- Refactor analytics, collections, conflicts, and queue modules
- Add new documentation features in docs.ts
- Implement linking between books and collections
- Add toast notifications for user feedback
- Include placeholder book SVG asset

This commit consolidates multiple feature additions and improvements
across the entire stack including backend, templates, and frontend.

web/src/queue.ts

@@ -1,5 +1,3 @@
-import type { QueueItemResponse } from './types/api';
-
 async function refreshQueue(): Promise<void> {
     const token = localStorage.getItem('token');
     if (!token) return;