ssh lsp completions (#17665)

Release Notes:

* ssh-remoting: Fixed shell environment loading for remote shells.

crates/remote_server/src/headless_project.rs

@@ -1,6 +1,6 @@
 use anyhow::{anyhow, Result};
 use fs::Fs;
-use gpui::{AppContext, AsyncAppContext, Context, Model, ModelContext, Task};
+use gpui::{AppContext, AsyncAppContext, Context, Model, ModelContext};
 use language::LanguageRegistry;
 use project::{
     buffer_store::BufferStore, project_settings::SettingsObserver, search::SearchQuery,
@@ -36,9 +36,7 @@ impl HeadlessProject {
     }
 
     pub fn new(session: Arc<SshSession>, fs: Arc<dyn Fs>, cx: &mut ModelContext<Self>) -> Self {
-        // TODO: we should load the env correctly (as we do in login_shell_env_loaded when stdout is not a pty). Can we re-use the ProjectEnvironment for that?
-        let mut languages =
-            LanguageRegistry::new(Task::ready(()), cx.background_executor().clone());
+        let mut languages = LanguageRegistry::new(cx.background_executor().clone());
         languages
             .set_language_server_download_dir(PathBuf::from("/Users/conrad/what-could-go-wrong"));