conforms file names to consistant standard

scripts/text_input_popup.gd

@@ -0,0 +1,19 @@
+class_name TextInputPopup
+extends PanelContainer
+
+signal completed(outcome: bool)
+
+
+func set_popup(prompt_text: String, placeholder_text: String, confirm_text: String) -> void:
+	$VBoxContainer/LineEdit.text = prompt_text
+	$VBoxContainer/LineEdit.placeholder_text = placeholder_text
+	$VBoxContainer/Button.text = confirm_text
+
+
+func _on_button_pressed() -> void:
+	completed.emit($VBoxContainer/LineEdit.text)
+	queue_free()
+
+
+func _on_button_mouse_entered() -> void:
+	$AudioStreamPlayer.play()