Integrate Fastlane CI/CD (#44)

.github/workflows/build_apk.yml

@@ -1,32 +0,0 @@
-name: Build APK Android
-
-on:
-  workflow_dispatch:
-  push:
-    branches: [main]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        working-directory: ./mobile
-    steps:
-      - uses: actions/checkout@v2
-
-      # Build
-      - uses: subosito/flutter-action@v2
-        with:
-          channel: "stable"
-          cache: true
-          cache-key: flutter2.10 # optional, change this to force refresh cache
-      - run: flutter --version
-      - run: flutter pub get
-      - run: flutter build apk
-      - run: flutter build appbundle
-
-      # Upload Artifact
-      - uses: actions/upload-artifact@v2
-        with:
-          name: release-apk
-          path: mobile/build/app/outputs/apk/release/app-release.apk