Fix warnings/errors now that AsyncAppContext::update returns Result

crates/collab_ui/src/collab_ui.rs

@@ -126,7 +126,7 @@ fn join_project(action: &JoinProject, app_state: Arc<AppState>, cx: &mut AppCont
                     }
                 }
             }
-        });
+        })?;
 
         anyhow::Ok(())
     })

crates/collab_ui/src/contact_finder.rs

@@ -67,7 +67,7 @@ impl PickerDelegate for ContactFinder {
                 this.update(&mut cx, |this, cx| {
                     this.potential_contacts = potential_contacts.into();
                     cx.notify();
-                });
+                })?;
                 anyhow::Ok(())
             }
             .log_err()