fix: Remove unused imports

lib/config/themes.dart

@@ -1,7 +1,6 @@
 //@dart=2.12
 
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 

lib/main.dart

@@ -2,7 +2,6 @@
 
 import 'dart:async';
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';

lib/pages/chat/chat.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/scheduler.dart';
 import 'package:flutter/services.dart';

lib/pages/chat/chat_view.dart

@@ -1,6 +1,3 @@
-import 'dart:ui';
-
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:flutter_gen/gen_l10n/l10n.dart';

lib/pages/chat/events/audio_player.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:audioplayers/audioplayers.dart';

lib/pages/chat/events/image_bubble.dart

@@ -1,6 +1,5 @@
 import 'dart:typed_data';
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:cached_network_image/cached_network_image.dart';

lib/pages/chat/events/message_reactions.dart

@@ -2,7 +2,6 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 import 'package:cached_network_image/cached_network_image.dart';
-import 'package:characters/characters.dart';
 import 'package:future_loading_dialog/future_loading_dialog.dart';
 import 'package:matrix/matrix.dart';
 

lib/pages/chat/input_bar.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 

lib/pages/chat/sticker_picker_dialog.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 import 'package:flutter_gen/gen_l10n/l10n.dart';

lib/pages/chat_list/chat_list.dart

@@ -1,8 +1,6 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:adaptive_dialog/adaptive_dialog.dart';

lib/pages/chat_list/chat_list_view.dart

@@ -1,7 +1,5 @@
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/widgets.dart';
 
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:matrix/matrix.dart';

lib/pages/homeserver_picker/homeserver_picker_view.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:cached_network_image/cached_network_image.dart';

lib/pages/settings/settings.dart

@@ -1,6 +1,5 @@
 import 'dart:async';
 
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 import 'package:adaptive_dialog/adaptive_dialog.dart';

lib/pages/settings_account/settings_account_view.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 
 import 'package:flutter_gen/gen_l10n/l10n.dart';

lib/pages/settings_emotes/settings_emotes.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:adaptive_dialog/adaptive_dialog.dart';

lib/pages/settings_emotes/settings_emotes_view.dart

@@ -1,4 +1,3 @@
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 

lib/widgets/avatar.dart

@@ -1,6 +1,5 @@
 //@dart=2.12
 
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:cached_network_image/cached_network_image.dart';

lib/widgets/content_banner.dart

@@ -1,5 +1,3 @@
-import 'package:flutter/cupertino.dart';
-import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 
 import 'package:cached_network_image/cached_network_image.dart';