Fix a bunch of other low-hanging style lints (#36498)

- **Fix a bunch of low hanging style lints like unnecessary-return**
- **Fix single worktree violation**
- **And the rest**

Release Notes:

- N/A

crates/agent_servers/src/agent_servers.rs

@@ -104,7 +104,7 @@ impl AgentServerCommand {
         cx: &mut AsyncApp,
     ) -> Option<Self> {
         if let Some(agent_settings) = settings {
-            return Some(Self {
+            Some(Self {
                 path: agent_settings.command.path,
                 args: agent_settings
                     .command
@@ -113,7 +113,7 @@ impl AgentServerCommand {
                     .chain(extra_args.iter().map(|arg| arg.to_string()))
                     .collect(),
                 env: agent_settings.command.env,
-            });
+            })
         } else {
             match find_bin_in_path(path_bin_name, project, cx).await {
                 Some(path) => Some(Self {

crates/agent_servers/src/e2e_tests.rs

@@ -471,7 +471,7 @@ pub fn get_zed_path() -> PathBuf {
 
     while zed_path
         .file_name()
-        .map_or(true, |name| name.to_string_lossy() != "debug")
+        .is_none_or(|name| name.to_string_lossy() != "debug")
     {
         if !zed_path.pop() {
             panic!("Could not find target directory");