match-3 grid generation

make game scene modular
global debug mode

scenes/ui/DebugToggle.gd

@@ -1,10 +1,13 @@
 extends Button
 
 func _ready():
-	text = "Debug: OFF"
 	pressed.connect(_on_pressed)
 	DebugManager.debug_toggled.connect(_on_debug_toggled)
 
+	# Initialize with current debug state
+	var current_state = DebugManager.is_debug_enabled()
+	text = "Debug: " + ("ON" if current_state else "OFF")
+
 func _on_pressed():
 	DebugManager.toggle_debug()