Update handling of join link previews (#10798)

Co-authored-by: Samuel Newman <mozzius@protonmail.com>

src/lib/api/index.ts

@@ -9,6 +9,7 @@ import {
   AppBskyFeedPost,
   BlobRef,
   type BskyAgent,
+  ChatBskyGroupDefs,
   type ComAtprotoLabelDefs,
   type ComAtprotoRepoApplyWrites,
   type ComAtprotoRepoStrongRef,
@@ -463,7 +464,10 @@ async function resolveMedia(
         },
       }
     }
-    if (resolvedLink.type === 'chat-invite' && resolvedLink.view) {
+    if (
+      resolvedLink.type === 'chat-invite' &&
+      ChatBskyGroupDefs.isJoinLinkPreviewView(resolvedLink.view)
+    ) {
       return {
         $type: 'app.bsky.embed.external',
         external: {