feat: add media converter app and fix compilation errors

package.json

@@ -9,6 +9,9 @@
     "lint": "eslint ."
   },
   "dependencies": {
+    "@ffmpeg/ffmpeg": "^0.12.15",
+    "@ffmpeg/util": "^0.12.2",
+    "@imagemagick/magick-wasm": "^0.0.38",
     "@tanstack/react-query": "^5.90.21",
     "@valknarthing/pastel-wasm": "^0.1.0",
     "class-variance-authority": "^0.7.1",
@@ -19,6 +22,7 @@
     "framer-motion": "^12.34.3",
     "fuse.js": "^7.1.0",
     "html-to-image": "^1.11.13",
+    "jszip": "^3.10.1",
     "lucide-react": "^0.575.0",
     "next": "^16.1.6",
     "radix-ui": "^1.4.3",