fix: update script paths to use relative lib directory in demo files

Author: itzmanish

demo/index.html

@@ -71,7 +71,7 @@ <h3>How it works</h3>
 		<script src="config.js"></script>
 
 		<!-- Load MoQ publisher library from local copy -->
-		<script src="../lib/dist/moq-publisher.iife.js"></script>
+		<script src="./lib/moq-publisher.iife.js"></script>
 
 		<!-- Publisher page logic -->
 		<script>

demo/player.html

@@ -93,7 +93,7 @@ <h4>Stream not loading?</h4>
 
 		<!-- Load MoQ player library with video-moq custom element -->
 		<script
-			src="../lib/dist/moq-player.iife.js"
+			src="./lib/moq-player.iife.js"
 			onerror="console.error('Failed to load moq-player.iife.js')"
 			onload="console.log('moq-player.iife.js loaded successfully')"
 		></script>