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/vim/src/vim_test_context.rs

@@ -7,11 +7,12 @@ use editor::{display_map::ToDisplayPoint, Autoscroll};
 use gpui::{json::json, keymap::Keystroke, ViewHandle};
 use indoc::indoc;
 use language::Selection;
+use project::Project;
 use util::{
     set_eq,
     test::{marked_text, marked_text_ranges_by, SetEqError},
 };
-use workspace::{WorkspaceHandle, WorkspaceParams};
+use workspace::{AppState, WorkspaceHandle};
 
 use crate::{state::Operator, *};
 
@@ -30,7 +31,8 @@ impl<'a> VimTestContext<'a> {
             settings::KeymapFileContent::load("keymaps/vim.json", cx).unwrap();
         });
 
-        let params = cx.update(WorkspaceParams::test);
+        let params = cx.update(AppState::test);
+        let project = Project::test(params.fs.clone(), [], cx).await;
 
         cx.update(|cx| {
             cx.update_global(|settings: &mut Settings, _| {
@@ -44,9 +46,8 @@ impl<'a> VimTestContext<'a> {
             .insert_tree("/root", json!({ "dir": { "test.txt": "" } }))
             .await;
 
-        let (window_id, workspace) = cx.add_window(|cx| Workspace::new(&params, cx));
-        params
-            .project
+        let (window_id, workspace) = cx.add_window(|cx| Workspace::new(project.clone(), cx));
+        project
             .update(cx, |project, cx| {
                 project.find_or_create_local_worktree("/root", true, cx)
             })