Everywhere: Run clang-format

Author: https://github.com/IdanHo
Commit: 086969277e
Pull-request: https://github.com/SerenityOS/serenity/pull/12321
Reviewed-by: https://github.com/BertalanD
Reviewed-by: https://github.com/bgianfo ✅

Userland/Libraries/LibGUI/RegularEditingEngine.h

@@ -15,7 +15,7 @@ class RegularEditingEngine final : public EditingEngine {
 public:
     virtual CursorWidth cursor_width() const override;
 
-    virtual bool on_key(const KeyEvent& event) override;
+    virtual bool on_key(KeyEvent const& event) override;
 
 private:
     void sort_selected_lines();