Implement comprehensive PWA with offline Bible reading capabilities

- Add Web App Manifest with app metadata, icons, and installation support
- Create Service Worker with intelligent caching strategies for Bible content, static assets, and dynamic content
- Implement IndexedDB-based offline storage system for Bible versions, books, chapters, and verses
- Add offline download manager component for browsing and downloading Bible versions
- Create offline Bible reader component for seamless offline reading experience
- Integrate PWA install prompt with platform-specific instructions
- Add offline reading interface to existing Bible reader with download buttons
- Create dedicated offline page with tabbed interface for reading and downloading
- Add PWA and offline-related translations for English and Romanian locales
- Implement background sync for Bible downloads and cache management
- Add storage usage monitoring and management utilities
- Ensure SSR-safe implementation with dynamic imports for client-side components

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

public/manifest.json

@@ -0,0 +1,91 @@
+{
+  "name": "Biblical Guide - Ghidul Biblic",
+  "short_name": "Biblical Guide",
+  "description": "Complete Bible study app with offline reading, AI chat, and multilingual support",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#ffffff",
+  "theme_color": "#009688",
+  "orientation": "portrait-primary",
+  "scope": "/",
+  "categories": ["books", "education", "lifestyle"],
+  "lang": "en",
+  "dir": "ltr",
+  "icons": [
+    {
+      "src": "/biblical-guide-og-image.png",
+      "sizes": "1200x630",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ],
+  "shortcuts": [
+    {
+      "name": "Read Bible",
+      "short_name": "Bible",
+      "description": "Start reading the Bible",
+      "url": "/bible",
+      "icons": [
+        {
+          "src": "/icon-192.png",
+          "sizes": "192x192"
+        }
+      ]
+    },
+    {
+      "name": "Daily Verse",
+      "short_name": "Verse",
+      "description": "Read today's verse",
+      "url": "/?daily=true",
+      "icons": [
+        {
+          "src": "/icon-192.png",
+          "sizes": "192x192"
+        }
+      ]
+    },
+    {
+      "name": "AI Chat",
+      "short_name": "Chat",
+      "description": "Ask biblical questions",
+      "url": "/?chat=true",
+      "icons": [
+        {
+          "src": "/icon-192.png",
+          "sizes": "192x192"
+        }
+      ]
+    },
+    {
+      "name": "Prayer Requests",
+      "short_name": "Prayers",
+      "description": "View prayer requests",
+      "url": "/prayers",
+      "icons": [
+        {
+          "src": "/icon-192.png",
+          "sizes": "192x192"
+        }
+      ]
+    }
+  ],
+  "features": [
+    "offline-reading",
+    "background-sync",
+    "push-notifications"
+  ],
+  "related_applications": [],
+  "prefer_related_applications": false
+}