Add some UI

ui/pause/PauseMain.gd

@@ -1,19 +1,25 @@
 class_name PauseMain extends VBoxContainer
 
+signal resumeRequested
+signal settingsRequested
+signal quitRequested
+
+@export var btnResume:Button
+@export var btnSettings:Button
+@export var btnQuit:Button
+
 func _ready() -> void:
   visible = false
-  $HBoxContainer/ItemList.item_selected.connect(onItemSelected)
+  btnResume.pressed.connect(resumeRequested.emit)
+  btnSettings.pressed.connect(settingsRequested.emit)
+  btnQuit.pressed.connect(quitRequested.emit)
 
 func open() -> void:
   visible = true
-  $HBoxContainer/ItemList.clear()
-  $HBoxContainer/ItemList.grab_focus()
+  btnResume.grab_focus()
 
 func close() -> void:
   visible = false
 
 func isOpen() -> bool:
   return visible
-
-func onItemSelected(index:int) -> void:
-  print("Selected item index: ", index)