Refactor out the node runtime crate and hook up all related imports

crates/zed/src/languages.rs

@@ -1,21 +1,17 @@
 use anyhow::Context;
-use gpui::executor::Background;
 pub use language::*;
 use node_runtime::NodeRuntime;
 use rust_embed::RustEmbed;
 use std::{borrow::Cow, str, sync::Arc};
 use theme::ThemeRegistry;
-use util::http::HttpClient;
 
 mod c;
 mod elixir;
-mod github;
 mod go;
 mod html;
 mod json;
 mod language_plugin;
 mod lua;
-mod node_runtime;
 mod python;
 mod ruby;
 mod rust;
@@ -37,13 +33,10 @@ mod yaml;
 struct LanguageDir;
 
 pub fn init(
-    http: Arc<dyn HttpClient>,
-    background: Arc<Background>,
     languages: Arc<LanguageRegistry>,
     themes: Arc<ThemeRegistry>,
+    node_runtime: Arc<NodeRuntime>,
 ) {
-    let node_runtime = NodeRuntime::new(http, background);
-
     for (name, grammar, lsp_adapter) in [
         (
             "c",