Collab UI v2 (#2618)

This PR implements
https://www.figma.com/file/pLq7dvhx2mFeWFOedXpUQ5/Project-%E2%80%93-Collaboration-UI?type=design&node-id=666%3A8610&t=XFGk6KEtTCFXBvCQ-1

Release notes:
- [x] Redesigned collaboration UI
- [x] Added voice support

crates/gpui/src/executor.rs

@@ -7,6 +7,7 @@ use std::{
     fmt::{self, Display},
     marker::PhantomData,
     mem,
+    panic::Location,
     pin::Pin,
     rc::Rc,
     sync::Arc,
@@ -965,10 +966,12 @@ impl<T> Task<T> {
 }
 
 impl<T: 'static, E: 'static + Display> Task<Result<T, E>> {
+    #[track_caller]
     pub fn detach_and_log_err(self, cx: &mut AppContext) {
+        let caller = Location::caller();
         cx.spawn(|_| async move {
             if let Err(err) = self.await {
-                log::error!("{:#}", err);
+                log::error!("{}:{}: {:#}", caller.file(), caller.line(), err);
             }
         })
         .detach();