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.

internal/router/frontend.go

@@ -139,12 +139,16 @@ func registerFrontendRoutes(cfg *Config) {
 
 		prefs, _ := cfg.DashboardService.GetDashboardPreferences(c.Request().Context(), userUUID, libUUID)
 
+		limit := 20
+		if prefs.ItemsPerSection.Int32 > 0 {
+			limit = int(prefs.ItemsPerSection.Int32)
+		}
 		var sections []services.DashboardSection
 		sections, err = cfg.DashboardService.GetDashboardSections(
 			c.Request().Context(),
 			userUUID,
 			libUUID,
-			int(prefs.ItemsPerSection.Int32),
+			limit,
 			prefs.CollectionOrder,
 			prefs.HiddenCollections,
 		)