feat: localize bootstrap

lib/views/settings.dart

@@ -510,8 +510,7 @@ class _SettingsState extends State<Settings> {
                         await showOkCancelAlertDialog(
                           context: context,
                           title: L10n.of(context).keysCached,
-                          message:
-                              'Wipe your chat backup to create a new security key?',
+                          message: L10n.of(context).wipeChatBackup,
                           isDestructiveAction: true,
                         )) {
                       return BootstrapDialog(

lib/views/settings_style.dart

@@ -109,7 +109,7 @@ class _SettingsStyleState extends State<SettingsStyle> {
           Divider(height: 1),
           ListTile(
             title: Text(
-              'Font size',
+              L10n.of(context).fontSize,
               style: TextStyle(
                 color: Theme.of(context).accentColor,
                 fontWeight: FontWeight.bold,