[Improvement] Selected Item should emit "mouse_entered()" and "mouse_exited()" signal

[KometFox]

I have a GUI Manager script for the purpose of doing basic management with GUI elements and I've stumbled upon a issue where I have a Item selected it doesn't trigger several GUI related signals anymore such as mouse_entered() and mouse_exited() signals which I need it because I added scripts to the items and those scripts still gets triggered when the cursor is over a GUI element which should not happen, I did connected those 2 signals at the GUI Manager script and it works only partially, not fully. And there is also another issue when the mouse cursor hovers over the 2 items it doesn't trigger those 2 signals either.