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/project/src/worktree_store.rs

@@ -153,6 +153,22 @@ impl WorktreeStore {
         None
     }
 
+    pub fn find_or_create_worktree(
+        &mut self,
+        abs_path: impl AsRef<Path>,
+        visible: bool,
+        cx: &mut ModelContext<Self>,
+    ) -> Task<Result<(Model<Worktree>, PathBuf)>> {
+        let abs_path = abs_path.as_ref();
+        if let Some((tree, relative_path)) = self.find_worktree(abs_path, cx) {
+            Task::ready(Ok((tree, relative_path)))
+        } else {
+            let worktree = self.create_worktree(abs_path, visible, cx);
+            cx.background_executor()
+                .spawn(async move { Ok((worktree.await?, PathBuf::new())) })
+        }
+    }
+
     pub fn entry_for_id<'a>(
         &'a self,
         entry_id: ProjectEntryId,
@@ -957,7 +973,7 @@ impl WorktreeStore {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 enum WorktreeHandle {
     Strong(Model<Worktree>),
     Weak(WeakModel<Worktree>),