move around some headers to make code easier to use

include/fggl/fggl.hpp

@@ -15,7 +15,8 @@
 #ifndef FGGL_INCLUDE_FGGL_FGGL_HPP
 #define FGGL_INCLUDE_FGGL_FGGL_HPP
 
-#include <fggl/app.hpp>
+#include "fggl/app.hpp"
+#include "fggl/util/service.hpp"
 
 namespace fggl {
 

include/fggl/gfx/ogl/backend.hpp

@@ -15,7 +15,7 @@
 #ifndef FGGL_GFX_OGL_BACKEND_HPP
 #define FGGL_GFX_OGL_BACKEND_HPP
 
-#include <fggl/gfx/ogl/common.hpp>
+#include "common.hpp"
 #include <fggl/gfx/window.hpp>
 
 #include <stdexcept>

include/fggl/gfx/ogl/renderer.hpp

@@ -122,7 +122,6 @@ namespace fggl::gfx {
 	};
 
 	using OpenGL4 = OpenGL4Backend;
-
 };  // namespace fggl::gfx
 
 #endif