format yaml file properly

.github/workflows/mobile.js.yml

@@ -5,28 +5,25 @@ name: Node.js CI
 
 on:
   push:
-    branches: [ "master" ]
+    branches: ['master']
   pull_request:
-    branches: [ "master" ]
+    branches: ['master']
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
-
     strategy:
       matrix:
         node-version: [12.x, 14.x, 16.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
-    - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node-version }}
-      working-directory: ./mobile-ui
-      uses: actions/setup-node@v3
-      with:
-        node-version: ${{ matrix.node-version }}
-        cache: 'npm'
-    - run: npm ci
-    - run: npm run build --if-present
-    - run: npm test
+      - uses: actions/checkout@v3
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: 'npm'
+      - run: npm ci
+      - run: npm run build --if-present
+      - run: npm test