chore: Update .gitignore

Author: robmllze

.flutter-plugins

@@ -1,15 +1,18 @@
 ##.title
 ## ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
 ##
-## Dart/Flutter (DF) Packages by DevCetra.com & contributors. See LICENSE file
-## in root directory.
+## Dart/Flutter (DF) Packages by DevCetra.com & contributors. Use of this
+## source code is governed by an MIT-style license that can be found in the
+## LICENSE file.
 ##
 ## ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓
 ##.title~
 
-**/___generators/
 **/.dart_tool/
 **/.DS_Store
 **/build/
 **/pubspec.lock
-**/.github/.git
+**/.github/.git
+**/.metadata
+**/.flutter-plugins
+**/.flutter-plugins-dependencies