add feature flag

preload.js

@@ -56,6 +56,7 @@ window.lokiFeatureFlags = {
   useFileOnionRequests: true,
   useFileOnionRequestsV2: true, // more compact encoding of files in response
   padOutgoingAttachments: true,
+  enablePinConversations: false,
 };
 
 if (typeof process.env.NODE_ENV === 'string' && process.env.NODE_ENV.includes('test-integration')) {

ts/components/session/menu/ConversationListItemContextMenu.tsx

@@ -46,9 +46,10 @@ export const ConversationListItemContextMenu = (props: PropsContextConversationI
 
   const isGroup = type === 'group';
   const isMessagesSection = useSelector(getFocusedSection) === SectionType.Message;
-  const pinMenuItem = isMessagesSection ? (
+  const pinMenuItem =
-    <MenuItemPinConversation conversationId={conversationId} />
+    isMessagesSection && window.lokiFeatureFlags.enablePinConversations ? (
-  ) : null;
+      <MenuItemPinConversation conversationId={conversationId} />
+    ) : null;
 
   return (
     <>

ts/window.d.ts

@@ -48,6 +48,7 @@ declare global {
       useFileOnionRequests: boolean;
       useFileOnionRequestsV2: boolean;
       padOutgoingAttachments: boolean;
+      enablePinConversations: boolean;
     };
     lokiSnodeAPI: LokiSnodeAPI;
     onLogin: any;