Bugfix: fix variable name for webgl renderer (#985)

Author: eulertour

manim/grpc/impl/frame_server_impl.py

@@ -78,7 +78,7 @@ def __init__(self, server, input_file_path):
             try:
                 sp.Popen(config["webgl_renderer_path"])
             except PermissionError:
-                logger.info(JS_RENDERER_INFO)
+                logger.info(WEBGL_RENDERER_INFO)
                 self.server.stop(None)
                 return