conforms file names to consistant standard

scripts/confirmation_popup.gd

@@ -0,0 +1,23 @@
+class_name ConfirmationPopup
+extends PanelContainer
+
+signal completed(outcome: bool)
+
+func set_popup(prompt_text: String, confirm_text: String, cancel_text: String) -> void:
+	$VBoxContainer/Label.text = tr(prompt_text)
+	$VBoxContainer/HBoxContainer/Confirm.text = tr(confirm_text)
+	$VBoxContainer/HBoxContainer/Cancel.text = tr(cancel_text)
+
+
+func _on_confirm_pressed() -> void:
+	completed.emit(true)
+	queue_free()
+
+
+func _on_cancel_pressed() -> void:
+	completed.emit(false)
+	queue_free()
+
+
+func _on_button_mouse_entered() -> void:
+	$AudioStreamPlayer.play()