feat: support RTL and auto direction (#191)

lib/src/l10n/l10n.dart

@@ -770,6 +770,36 @@ class AppFlowyEditorLocalizations {
       args: [],
     );
   }
+
+  /// `RTL`
+  String get rtl {
+    return Intl.message(
+      'RTL',
+      name: 'rtl',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `LTR`
+  String get ltr {
+    return Intl.message(
+      'LTR',
+      name: 'ltr',
+      desc: '',
+      args: [],
+    );
+  }
+
+  /// `Auto`
+  String get auto {
+    return Intl.message(
+      'Auto',
+      name: 'auto',
+      desc: '',
+      args: [],
+    );
+  }
 }
 
 class AppLocalizationDelegate