combine flutter and dart actions

reduce time to complete and stop running twice for pull requests

.github/workflows/flutter_dart.yml

@@ -0,0 +1,41 @@
+name: Flutter and Dart Analysis
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  analyze:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Analyze code
+        run: flutter analyze --fatal-infos --fatal-warnings
+  format:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          channel: stable
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Verify formatting
+        run: dart format --output=none --set-exit-if-changed .