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/HeaderView.h

@@ -21,7 +21,7 @@ public:
     Gfx::Orientation orientation() const { return m_orientation; }
 
     Model* model();
-    const Model* model() const;
+    Model const* model() const;
 
     void set_section_size(int section, int size);
     int section_size(int section) const;