Update .gitignore

.gitignore

@@ -1,13 +1,19 @@
-# See https://www.dartlang.org/guides/libraries/private-files
-
-# Files and directories created by pub
+.DS_Store
 .dart_tool/
+.idea
+
 .packages
 .pub/
+.idea/
+
 build/
-# If you're building an application, you may want to check-in your pubspec.lock
-pubspec.lock
+ios/.generated/
+ios/Flutter/Generated.xcconfig
+ios/Runner/GeneratedPluginRegistrant.*
+
+*.txt
+android/.gradle
 
-# Directory created by dartdoc
-# If you don't generate documentation locally you can remove this line.
-doc/api/
+.flutter-plugins
+*.lock
+*.lock