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/LibCore/Event.h

@@ -115,10 +115,10 @@ public:
     ~ChildEvent() = default;
 
     Object* child();
-    const Object* child() const;
+    Object const* child() const;
 
     Object* insertion_before_child();
-    const Object* insertion_before_child() const;
+    Object const* insertion_before_child() const;
 
 private:
     WeakPtr<Object> m_child;