Make offline usable

package.json

@@ -17,8 +17,11 @@
     "check:all": "run-p lint check type-check"
   },
   "dependencies": {
+    "@fontsource/source-sans-pro": "^5.2.5",
     "@tailwindcss/vite": "^4.1.13",
     "@vuestic/tailwind": "^0.1.5",
+    "material-design-icons-iconfont": "^6.7.0",
+    "material-icons": "^1.13.14",
     "pinia": "^3.0.3",
     "pinia-plugin-persistedstate": "^4.5.0",
     "tailwind": "^4.0.0",
@@ -42,6 +45,7 @@
     "prettier-plugin-tailwindcss": "^0.6.14",
     "typescript": "~5.8.0",
     "vite": "^7.0.6",
+    "vite-plugin-pwa": "^1.0.3",
     "vite-plugin-vue-devtools": "^8.0.0",
     "vue-tsc": "^3.0.6"
   }