Add settings to remote servers, use XDG paths on remote, and enable node LSPs (#19176)

Supersedes https://github.com/zed-industries/zed/pull/19166

TODO:
- [x] Update basic zed paths
- [x] update create_state_directory
- [x] Use this with `NodeRuntime`
- [x] Add server settings
- [x] Add an 'open server settings command'
- [x] Make sure it all works


Release Notes:

- Updated the actions `zed::OpenLocalSettings` and `zed::OpenLocalTasks`
to `zed::OpenProjectSettings` and `zed::OpenProjectTasks`.

---------

Co-authored-by: Conrad <conrad@zed.dev>
Co-authored-by: Richard <richard@zed.dev>

crates/collab/src/tests/remote_editing_collaboration_tests.rs

@@ -2,10 +2,12 @@ use crate::tests::TestServer;
 use call::ActiveCall;
 use fs::{FakeFs, Fs as _};
 use gpui::{Context as _, TestAppContext};
-use language::language_settings::all_language_settings;
+use http_client::BlockedHttpClient;
+use language::{language_settings::all_language_settings, LanguageRegistry};
+use node_runtime::NodeRuntime;
 use project::ProjectPath;
 use remote::SshRemoteClient;
-use remote_server::HeadlessProject;
+use remote_server::{HeadlessAppState, HeadlessProject};
 use serde_json::json;
 use std::{path::Path, sync::Arc};
 
@@ -48,8 +50,22 @@ async fn test_sharing_an_ssh_remote_project(
 
     // User A connects to the remote project via SSH.
     server_cx.update(HeadlessProject::init);
-    let _headless_project =
-        server_cx.new_model(|cx| HeadlessProject::new(server_ssh, remote_fs.clone(), cx));
+    let remote_http_client = Arc::new(BlockedHttpClient);
+    let node = NodeRuntime::unavailable();
+    let languages = Arc::new(LanguageRegistry::new(server_cx.executor()));
+    let _headless_project = server_cx.new_model(|cx| {
+        client::init_settings(cx);
+        HeadlessProject::new(
+            HeadlessAppState {
+                session: server_ssh,
+                fs: remote_fs.clone(),
+                http_client: remote_http_client,
+                node_runtime: node,
+                languages,
+            },
+            cx,
+        )
+    });
 
     let (project_a, worktree_id) = client_a
         .build_ssh_project("/code/project1", client_ssh, cx_a)