Fix clippy::redundant_clone lint violations (#36558)

This removes around 900 unnecessary clones, ranging from cloning a few
ints all the way to large data structures and images.

A lot of these were fixed using `cargo clippy --fix --workspace
--all-targets`, however it often breaks other lints and needs to be run
again. This was then followed up with some manual fixing.

I understand this is a large diff, but all the changes are pretty
trivial. Rust is doing some heavy lifting here for us. Once I get it up
to speed with main, I'd appreciate this getting merged rather sooner
than later.

Release Notes:

- N/A

crates/collab/src/auth.rs

@@ -236,7 +236,7 @@ mod test {
 
     #[gpui::test]
     async fn test_verify_access_token(cx: &mut gpui::TestAppContext) {
-        let test_db = crate::db::TestDb::sqlite(cx.executor().clone());
+        let test_db = crate::db::TestDb::sqlite(cx.executor());
         let db = test_db.db();
 
         let user = db