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/semantic_index/src/embedding_index.rs

@@ -88,7 +88,7 @@ impl EmbeddingIndex {
 
         let worktree = self.worktree.read(cx).snapshot();
         let worktree_abs_path = worktree.abs_path().clone();
-        let scan = self.scan_updated_entries(worktree, updated_entries.clone(), cx);
+        let scan = self.scan_updated_entries(worktree, updated_entries, cx);
         let chunk = self.chunk_files(worktree_abs_path, scan.updated_entries, cx);
         let embed = Self::embed_files(self.embedding_provider.clone(), chunk.files, cx);
         let persist = self.persist_embeddings(scan.deleted_entry_ranges, embed.files, cx);
@@ -406,7 +406,7 @@ impl EmbeddingIndex {
                 .context("failed to create read transaction")?;
             let result = db
                 .iter(&tx)?
-                .map(|entry| Ok(entry?.1.path.clone()))
+                .map(|entry| Ok(entry?.1.path))
                 .collect::<Result<Vec<Arc<Path>>>>();
             drop(tx);
             result
@@ -423,8 +423,7 @@ impl EmbeddingIndex {
             Ok(db
                 .get(&tx, &db_key_for_path(&path))?
                 .context("no such path")?
-                .chunks
-                .clone())
+                .chunks)
         })
     }
 }