remove pin option from thread

Author: DanC5

src/components/MessageActions/MessageActionsBox.js

@@ -59,13 +59,14 @@ const MessageActionsBox = ({
       ref={checkIfReverse}
     >
       <ul className="str-chat__message-actions-list">
-        {messageActions.indexOf(MESSAGE_ACTIONS.pin) > -1 && (
-          <button onClick={handlePin}>
-            <li className="str-chat__message-actions-list-item">
-              {!message?.pinned ? t('Pin') : t('Unpin')}
-            </li>
-          </button>
-        )}
+        {messageActions.indexOf(MESSAGE_ACTIONS.pin) > -1 &&
+          !message?.parent_id && (
+            <button onClick={handlePin}>
+              <li className="str-chat__message-actions-list-item">
+                {!message?.pinned ? t('Pin') : t('Unpin')}
+              </li>
+            </button>
+          )}
         {messageActions.indexOf(MESSAGE_ACTIONS.flag) > -1 && (
           <button onClick={handleFlag}>
             <li className="str-chat__message-actions-list-item">{t('Flag')}</li>