perf(desktop): don't block channel create on channel-list refetch (#1360)

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Brain <21994759fc7a6fa6b965551d35cfd7897d262f2495467f2d78694ddcfa6a5c7e@sprout-oss.stage.blox.sqprod.co>

desktop/src/features/channels/hooks.ts

@@ -125,8 +125,14 @@ export function useCreateChannelMutation() {
         ]),
       );
     },
-    onSettled: async () => {
-      await queryClient.invalidateQueries({ queryKey: channelsQueryKey });
+    onSettled: () => {
+      // refetchType "none": onSuccess already cached the relay-returned channel;
+      // an immediate getChannels() refetch blocked the dialog and could clobber
+      // it with a read-after-write-lagged snapshot. Live updates reconcile later.
+      void queryClient.invalidateQueries({
+        queryKey: channelsQueryKey,
+        refetchType: "none",
+      });
     },
   });
 }

desktop/src/features/channels/ui/ChannelPane.helpers.ts

@@ -23,7 +23,7 @@ export function getChannelIntroDescription(channel: Channel): string | null {
   return (
     channel.topic?.trim() ||
     channel.purpose?.trim() ||
-    channel.description.trim() ||
+    channel.description?.trim() ||
     null
   );
 }