Edited GitIgnore to include flutter build folders and AS directories

.gitignore

@@ -1,16 +1,17 @@
-# ---> Dart
-# See https://www.dartlang.org/guides/libraries/private-files
-
 # Files and directories created by pub
-.dart_tool/
 .packages
 build/
 # If you're building an application, you may want to check-in your pubspec.lock
 pubspec.lock
 
-# Directory created by dartdoc
-# If you don't generate documentation locally you can remove this line.
-doc/api/
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
 
 # dotenv environment variables file
 .env*
@@ -27,3 +28,13 @@ doc/api/
 .flutter-plugins
 .flutter-plugins-dependencies
 
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release