Tidy up LSP (#17973)

Release Notes:

- N/A

crates/extension/src/extension_lsp_adapter.rs

@@ -38,7 +38,7 @@ impl LspAdapter for ExtensionLspAdapter {
 
     fn get_language_server_command<'a>(
         self: Arc<Self>,
-        _: Arc<Path>,
+        _: Option<Arc<Path>>,
         delegate: Arc<dyn LspAdapterDelegate>,
         _: futures::lock::MutexGuard<'a, Option<LanguageServerBinary>>,
         _: &'a mut AsyncAppContext,