Add linting to GitHub actions

.github/workflows/lint.yml

@@ -0,0 +1,13 @@
+name: Lint
+ 
+on: [push]
+ 
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install Node dependencies
+      run: npm install
+    - name: Run linter
+      run: npm run lint

package.json

@@ -8,7 +8,7 @@
     "ios": "react-native run-ios --scheme \"Jellyfin Player\"",
     "start": "react-native start",
     "test": "jest",
-    "lint": "eslint . --ext .js,.jsx,.ts,.tsx",
+    "lint": "eslint . --ext .js,.jsx,.ts,.tsx && tsc --noEmit",
     "build:ios": "react-native bundle --entry-file='index.ts' --bundle-output='./ios/main.jsbundle' --dev=false --platform='ios'"
   },
   "dependencies": {