build: Download canvaskit on build for flutter web

.github/workflows/main_deploy.yaml

@@ -25,7 +25,7 @@ jobs:
       - name: Prepare web
         run: ./scripts/prepare-web.sh
       - name: Build Release Web
-        run: flutter build web --release --verbose --source-maps --base-href "/web/"
+        run: flutter build web --dart-define=FLUTTER_WEB_CANVASKIT_URL=canvaskit/ --release --source-maps --base-href "/web/"
       - name: Build Website
         run: |
           cd docs && npx tailwindcss -o ./tailwind.css --minify && cd ..

.github/workflows/release.yaml

@@ -25,7 +25,7 @@ jobs:
       - name: Prepare web
         run: ./scripts/prepare-web.sh
       - name: Build Release Web
-        run: flutter build web --release --source-maps
+        run: flutter build web --dart-define=FLUTTER_WEB_CANVASKIT_URL=canvaskit/ --release --source-maps
       - name: Create archive
         run: tar -czf fluffychat-web.tar.gz build/web/
       - name: Upload Web Build