Enable shift+del as "cut" in text editor.
Created by: magpie514
It'd be pretty nice if the text editor allowed using the keyboard shortcut shift+del, usually "cut text" in most toolkits, text editors and OSs. Using it in Godot just deletes the text without adding it to clipboard, which can be misleading when you try paste the text later. The shortcut shift+ins for paste and control+ins for copy already work, so it'd be nice to have its complementary in place as well