Refactor CI workflow and add Linux packaging support; update app title to "Vaani"

.github/workflows/flutter_release.yaml

@@ -8,7 +8,7 @@ on:
   workflow_dispatch:
 
 jobs:
-  build:
+  setup:
     permissions:
       # write permission is required to create a github release
       contents: write
@@ -19,13 +19,6 @@ jobs:
         uses: actions/checkout@v4
         with:
           submodules: recursive
-
-      - name: Set Up Java
-        uses: actions/setup-java@v3.12.0
-        with:
-          distribution: "oracle"
-          java-version: "17"
-
       - name: Set up Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -35,6 +28,20 @@ jobs:
       - name: Install dependencies
         run: flutter pub get
 
+  build_android:
+    needs: setup
+    permissions:
+      # write permission is required to create a github release
+      contents: write
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Set Up Java
+        uses: actions/setup-java@v3.12.0
+        with:
+          distribution: "oracle"
+          java-version: "17"
+
       # - name: Run tests
       #   run: flutter test
 
@@ -56,6 +63,28 @@ jobs:
       - name: Build App Bundle
         run: flutter build appbundle --release
 
+  build_linux:
+    needs: setup
+    permissions:
+      # write permission is required to create a github release
+      contents: write
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: setup fastforge
+        run: |
+          dart pub global activate fastforge
+      - name: Build Linux AppImage
+        run: fastforge package --platform linux --targets deb
+
+  create_release:
+    needs: [build_android, build_linux]
+    permissions:
+      # write permission is required to create a github release
+      contents: write
+    runs-on: ubuntu-latest
+
+    steps:
       - name: version
         id: version
         run: |
@@ -75,7 +104,7 @@ jobs:
       - name: Create GitHub Release
         uses: ncipollo/release-action@v1
         with:
-          artifacts: "build/app/outputs/flutter-apk/*-release*.apk,build/app/outputs/bundle/release/*.aab"
+          artifacts: "build/app/outputs/flutter-apk/*-release*.apk,build/app/outputs/bundle/release/*.aab,dist/*/*.deb"
           name: v${{ steps.version.outputs.version }}
           tag: ${{ github.ref }}
           body: ${{ steps.generate_release_notes.outputs.body }}