feat: adiciona menu Desenvolvedor as configuracoes, nova modal Sobre e icones da marca TatuChat

- Submenu Desenvolvedor em Configuracoes (Sobre o servidor, Registros, Variaveis e ambiente)
- Modal Sobre maior com logo, descricao com link e rodape (codigo-fonte, licenca, fechar)
- Descricao legivel no tema dark
- Drawer com a logo do projeto e links de support/formulario atualizados
- flutter_launcher_icons: regenera icones Android (mipmap + adaptive), Web, iOS, macOS, Windows

lib/pages/chat_list/client_chooser_button.dart

@@ -12,7 +12,6 @@ import 'package:tatchat/l10n/l10n.dart';
 import 'package:tatchat/utils/tatu_share.dart';
 import 'package:tatchat/widgets/avatar.dart';
 import 'package:tatchat/widgets/matrix.dart';
-import 'package:url_launcher/url_launcher_string.dart';
 
 import 'chat_list.dart';
 
@@ -109,16 +108,6 @@ class ClientChooserButton extends StatelessWidget {
           ],
         ),
       ),
-      PopupMenuItem(
-        value: SettingsAction.support,
-        child: Row(
-          children: [
-            Icon(Icons.favorite, color: Colors.red),
-            const SizedBox(width: 18),
-            Text(L10n.of(context).supportFluffyChat),
-          ],
-        ),
-      ),
       const PopupMenuDivider(),
       ..._bundleEntries(context, matrix, bundles),
       PopupMenuItem(
@@ -249,11 +238,6 @@ class ClientChooserButton extends StatelessWidget {
         case SettingsAction.invite:
           TatuShare.shareInviteLink(context);
           break;
-        case SettingsAction.support:
-          launchUrlString(
-            'https://ko-fi.com/post/How-can-I-support-FluffyChat-J2G325WE6I',
-          );
-          break;
         case SettingsAction.settings:
           context.go('/rooms/settings');
           break;
@@ -271,13 +255,4 @@ class ClientChooserButton extends StatelessWidget {
   }
 }
 
-enum SettingsAction {
-  addAccount,
-  newGroup,
-  setStatus,
-  invite,
-  support,
-  settings,
-  archive,
-  apps,
-}
+enum SettingsAction { addAccount, newGroup, setStatus, invite, settings, archive, apps }