Add LoadConfigFile to Controller, include file_util src in build

src/app/core/controller.h

@@ -12,10 +12,9 @@
 #include "imgui/imgui_internal.h"
 #include "absl/status/status.h"
 #include "app/core/platform/renderer.h"
+#include "app/core/utils/file_util.h"
 #include "app/editor/editor_manager.h"
 #include "app/editor/utils/editor.h"
-#include "app/gui/icons.h"
-#include "app/gui/style.h"
 
 int main(int argc, char **argv);
 
@@ -23,8 +22,6 @@ namespace yaze {
 namespace app {
 namespace core {
 
-enum class Platform { kUnknown, kMacOS, kiOS, kWindows, kLinux };
-
 /**
  * @brief Main controller for the application.
  *
@@ -44,6 +41,7 @@ class Controller : public ExperimentFlags {
   absl::Status CreateSDL_Window();
   absl::Status CreateRenderer();
   absl::Status CreateGuiContext();
+  absl::Status LoadConfigFiles();
   absl::Status LoadFontFamilies() const;
   absl::Status LoadAudioDevice();