Respond to join project request before sharing project completes

This ensures the guest doesn't observe a huge delay when joining.

crates/project/src/project.rs

@@ -1332,12 +1332,13 @@ impl Project {
             let client = self.client.clone();
             cx.foreground()
                 .spawn(async move {
-                    share.await?;
                     client.send(proto::RespondToJoinProjectRequest {
                         requester_id,
                         project_id,
                         allow,
-                    })
+                    })?;
+                    share.await?;
+                    anyhow::Ok(())
                 })
                 .detach_and_log_err(cx);
         }

crates/project/src/worktree.rs

@@ -2718,10 +2718,11 @@ async fn send_worktree_update(
     #[cfg(not(any(test, feature = "test-support")))]
     const MAX_CHUNK_SIZE: usize = 256;
 
-    loop {
+    let mut is_last_update = false;
+    while !is_last_update {
         let chunk_size = cmp::min(update.updated_entries.len(), MAX_CHUNK_SIZE);
         let updated_entries = update.updated_entries.drain(..chunk_size).collect();
-        let is_last_update = update.updated_entries.is_empty();
+        is_last_update = update.updated_entries.is_empty();
         client
             .request(proto::UpdateWorktree {
                 project_id: update.project_id,
@@ -2733,9 +2734,6 @@ async fn send_worktree_update(
                 is_last_update,
             })
             .await?;
-        if is_last_update {
-            break;
-        }
     }
 
     Ok(())