project: Fine-grained language server management (#23805)

Closes #ISSUE
https://github.com/zed-industries/zed/pull/23804
Release Notes:

- Improved detection of project roots for use by language servers.

crates/copilot/src/copilot.rs

@@ -458,12 +458,14 @@ impl Copilot {
                 .on_notification::<StatusNotification, _>(|_, _| { /* Silence the notification */ })
                 .detach();
 
-            let initialize_params = None;
             let configuration = lsp::DidChangeConfigurationParams {
                 settings: Default::default(),
             };
             let server = cx
-                .update(|cx| server.initialize(initialize_params, configuration.into(), cx))?
+                .update(|cx| {
+                    let params = server.default_initialize_params(cx);
+                    server.initialize(params, configuration.into(), cx)
+                })?
                 .await?;
 
             let status = server