Fill context menu of Zed macOS dock icon with recent projects (#8952)

Fixes https://github.com/zed-industries/zed/issues/8416

Release Notes:

- Added recent projects into Zed's macOS dock icon context menu ([8416](https://github.com/zed-industries/zed/issues/8416))

---------

Co-authored-by: Kirill Bulatov <kirill@zed.dev>

crates/gpui/src/app.rs

@@ -1132,6 +1132,17 @@ impl AppContext {
         self.platform.set_menus(menus, &self.keymap.borrow());
     }
 
+    /// Adds given path to list of recent paths for the application.
+    /// The list is usually shown on the application icon's context menu in the dock,
+    /// and allows to open the recent files via that context menu.
+    pub fn add_recent_documents(&mut self, paths: &[PathBuf]) {
+        self.platform.add_recent_documents(paths);
+    }
+
+    /// Clears the list of recent paths from the application.
+    pub fn clear_recent_documents(&mut self) {
+        self.platform.clear_recent_documents();
+    }
     /// Dispatch an action to the currently active window or global action handler
     /// See [action::Action] for more information on how actions work
     pub fn dispatch_action(&mut self, action: &dyn Action) {