tools: make tree view inside Project Browser focusable

docs/changelog.rst

@@ -8,6 +8,7 @@ Changelog
 **Tools**
 
 * Fixed minor issues when toggling the Console.
+* Fixed the Project Browser not being able to obtain keyboard focus.
 
 0.46.0
 ------

tools/level_editor/project_browser.vala

@@ -166,7 +166,6 @@ public class ProjectBrowser : Gtk.Box
 */
 		_tree_view.model = _tree_sort;
 		_tree_view.headers_visible = false;
-		_tree_view.can_focus = false;
 		_tree_view.button_press_event.connect(on_button_pressed);
 		_tree_view.button_release_event.connect(on_button_released);