Remove AppState from workspace actions

This allows those actions to be bound to keystrokes in the keymap.
Also, remove the WorkspaceParams struct, simplify how Workspaces are
constructed.

crates/zed/src/test.rs

@@ -1,13 +1,3 @@
-use crate::{build_window_options, build_workspace, AppState};
-use assets::Assets;
-use client::{test::FakeHttpClient, ChannelList, Client, UserStore};
-use gpui::MutableAppContext;
-use language::LanguageRegistry;
-use project::fs::FakeFs;
-use settings::Settings;
-use std::sync::Arc;
-use theme::ThemeRegistry;
-
 #[cfg(test)]
 #[ctor::ctor]
 fn init_logger() {
@@ -15,32 +5,3 @@ fn init_logger() {
         env_logger::init();
     }
 }
-
-pub fn test_app_state(cx: &mut MutableAppContext) -> Arc<AppState> {
-    let settings = Settings::test(cx);
-    editor::init(cx);
-    cx.set_global(settings);
-    let themes = ThemeRegistry::new(Assets, cx.font_cache().clone());
-    let http = FakeHttpClient::with_404_response();
-    let client = Client::new(http.clone());
-    let user_store = cx.add_model(|cx| UserStore::new(client.clone(), http, cx));
-    let languages = LanguageRegistry::test();
-    languages.add(Arc::new(language::Language::new(
-        language::LanguageConfig {
-            name: "Rust".into(),
-            path_suffixes: vec!["rs".to_string()],
-            ..Default::default()
-        },
-        Some(tree_sitter_rust::language()),
-    )));
-    Arc::new(AppState {
-        themes,
-        languages: Arc::new(languages),
-        channel_list: cx.add_model(|cx| ChannelList::new(user_store.clone(), client.clone(), cx)),
-        client,
-        user_store,
-        fs: FakeFs::new(cx.background().clone()),
-        build_window_options,
-        build_workspace,
-    })
-}