[mirotalksfu] - #194 Rename class, fix typo

public/views/Room.html

@@ -118,7 +118,7 @@
         <script defer src="../js/SpeechRec.js"></script>
         <script defer src="../js/Transcription.js"></script>
         <script defer src="../js/VideoGrid.js"></script>
-        <script defer src="../js/WebRTCStreamProcessor.js"></script>
+        <script defer src="../js/VirtualBackground.js"></script>
         <script defer src="../js/RoomClient.js"></script>
         <script defer src="../js/Room.js"></script>
         <script defer src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>