add submenu rtl support (disabled for now)

ts/session/utils/Menu.tsx

@@ -234,8 +234,13 @@ export function getDisappearingMenuItem(
       Boolean(isBlocked)
     )
   ) {
+    const isRtlMode = isRtlBody();
     return (
-      <SubMenu title={i18n('disappearingMessages') as any}>
+      // Remove the && false to make context menu work with RTL support
+      <SubMenu
+        title={i18n('disappearingMessages') as any}
+        rtl={isRtlMode && false}
+      >
         {(timerOptions || []).map(item => (
           <MenuItem
             key={item.value}
@@ -252,6 +257,10 @@ export function getDisappearingMenuItem(
   return null;
 }
 
+export function isRtlBody(): boolean {
+  return ($('body') as any).hasClass('rtl');
+}
+
 export function getShowMemberMenuItem(
   isPublic: boolean | undefined,
   isRss: boolean | undefined,