Add tooltip component and integrate it into the scene; adjust audio volume for coin sound effect

objects/audio_controller.tscn

@@ -0,0 +1,10 @@
+[gd_scene load_steps=2 format=3 uid="uid://dwi23csqy6d6m"]
+
+[ext_resource type="AudioStream" uid="uid://bludculi5i6s" path="res://music/Cute RPG - Dreamy Dandelion (Loopable).ogg" id="1_fuc3i"]
+
+[node name="AudioController" type="Node"]
+
+[node name="Background Music" type="AudioStreamPlayer" parent="."]
+stream = ExtResource("1_fuc3i")
+autoplay = true
+parameters/looping = true