feat: Add PWA support with service worker and caching

- Implemented service worker registration in main.js
- Added icons for PWA in manifest.json
- Created a basic service worker (sw.js) for caching static assets
- Generated a list of files to cache using a Node.js script (generate-pwa-cache-list.js)
- Added icon images (icon-192.png and icon-512.png) for PWA
- Defined PWA manifest with app details and icon references

.github/workflows/gh-pages.yml

@@ -37,6 +37,9 @@ jobs:
       - name: Generate SVG variants
         run: node scripts/generate-svg-variants.js
 
+      - name: Generate PWA cache list
+        run: node scripts/generate-pwa-cache-list.js
+
       - name: Prepare Pages artifact
         run: |
           mkdir -p ./gh-pages-artifact/build
@@ -50,6 +53,7 @@ jobs:
           cp -r public/data ./gh-pages-artifact/
           cp -r public/logos ./gh-pages-artifact/
           cp -r public/logos_gen ./gh-pages-artifact/
+          cp public/pwa-files-to-cache.json ./gh-pages-artifact/
           if [ -f public/CNAME ]; then
             cp public/CNAME ./gh-pages-artifact/CNAME
           fi