Added keyboard control to main menu. Reworked logic

menu/options.tscn

@@ -1,7 +1,13 @@
-[gd_scene load_steps=2 format=3 uid="uid://btr60idiit4y7"]
+[gd_scene load_steps=4 format=3 uid="uid://btr60idiit4y7"]
 
 [ext_resource type="Script" uid="uid://ceng1u112aqg0" path="res://menu/options.gd" id="1_61pji"]
 
+[sub_resource type="InputEventAction" id="InputEventAction_61pji"]
+action = &"ui_cancel"
+
+[sub_resource type="Shortcut" id="Shortcut_1tdpy"]
+events = [SubResource("InputEventAction_61pji")]
+
 [node name="Options" type="Control"]
 layout_mode = 3
 anchors_preset = 0
@@ -20,6 +26,7 @@ layout_mode = 2
 columns = 2
 
 [node name="FullscreenLabel" type="Label" parent="VBoxContainer/OptionsGridContainer"]
+unique_name_in_owner = true
 layout_mode = 2
 text = "Fullscreen"
 
@@ -28,6 +35,7 @@ unique_name_in_owner = true
 layout_mode = 2
 
 [node name="WindowFactorLabel" type="Label" parent="VBoxContainer/OptionsGridContainer"]
+unique_name_in_owner = true
 layout_mode = 2
 text = "Window Factor"
 
@@ -54,11 +62,14 @@ layout_mode = 2
 alignment = 2
 
 [node name="CreditsButton" type="Button" parent="VBoxContainer/HBoxContainer"]
+unique_name_in_owner = true
 layout_mode = 2
 text = "Credits"
 
 [node name="BackButton" type="Button" parent="VBoxContainer/HBoxContainer"]
+unique_name_in_owner = true
 layout_mode = 2
+shortcut = SubResource("Shortcut_1tdpy")
 text = "Back"
 
 [connection signal="toggled" from="VBoxContainer/OptionsGridContainer/FullscreenCheckButton" to="." method="_on_fullscreen_check_button_toggled"]