feat: update app name and icons for K-Tuner

- Changed app title from "AeroTuner" to "K-Tuner" in index.html and vite.config.ts
- Updated icon paths in index.html and vite.config.ts to use new icon files
- Added new icon files in various sizes (128x128, 144x144, 152x152, 192x192, 256x256, 384x384, 512x512, 48x48, 72x72, 96x96)
- Removed old PWA icons (pwa-192x192.png, pwa-512x512.png)
- Updated package.json to use a newer version of @types/bun
- Excluded test files from TypeScript compilation in tsconfig.app.json
- Refactored Header component to display "K-Tuner"

package.json

@@ -17,7 +17,7 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
-    "@types/bun": "^1.3.3",
+    "@types/bun": "^1.3.5",
     "@types/node": "^24.10.1",
     "@types/react": "^19.2.5",
     "@types/react-dom": "^19.2.3",