TF-1886 Support RTL mode for HTML display

(cherry picked from commit 9ac393489e746b49073b1a2d98063481f4c894c6)

lib/main/utils/app_utils.dart

@@ -33,6 +33,9 @@ class AppUtils {
     return intl.Bidi.isRtlLanguage(Localizations.localeOf(context).languageCode);
   }
 
+  static TextDirection getCurrentDirection(BuildContext context) =>
+    isDirectionRTL(context) ? TextDirection.rtl : TextDirection.ltr;
+
   static bool isEmailLocalhost(String email) {
     return  RegExp(r'^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@localhost$').hasMatch(email);
   }