refactor: convert React Native packages to stubs and fix remaining build issues

- Convert @vjs-10/react-native packages to placeholder stubs for future implementation
- Move Video.tsx from @vjs-10/react-media-elements to @vjs-10/react package
- Fix React JSX compilation errors by changing jsx config from react-jsx to react
- Add React imports to all TSX files to resolve UMD global errors
- Remove React Native specific dependencies from package.json files
- Refactor @vjs-10/react-media-elements to export VideoElement/AudioElement with placeholders
- All packages now build successfully with monorepo architecture intact

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

packages/react-native/react-native-media-elements/package.json

@@ -20,20 +20,14 @@
     "mobile"
   ],
   "license": "Apache-2.0",
-  "dependencies": {
-    "@vjs-10/media": "*"
-  },
+  "dependencies": {},
   "peerDependencies": {
-    "react": ">=16.8.0",
-    "react-native": ">=0.60.0",
-    "react-native-video": ">=5.0.0"
+    "react": ">=16.8.0"
   },
   "devDependencies": {
     "typescript": "^5.3.0",
     "@types/react": "^18.0.0",
-    "@types/react-native": "^0.72.0",
-    "react": "^18.0.0",
-    "react-native": "^0.72.0"
+    "react": "^18.0.0"
   },
   "publishConfig": {
     "access": "public"