Simplify RegExp (#995)

Summary:
## Changelog
Pull Request resolved: https://github.com/facebook/flipper/pull/995

Reviewed By: passy

Differential Revision: D21112956

Pulled By: priteshrnandgaonkar

fbshipit-source-id: 14d79dd399970c49835aab7eeb7dbd69ee323ab9

desktop/plugins/hermesdebuggerrn/ChromeDevTools.tsx

@@ -12,10 +12,7 @@ import React from 'react';
 import electron from 'electron';
 
 const devToolsNodeId = (url: string) =>
-  `hermes-chromedevtools-out-of-react-node-${url.replace(
-    /[^a-zA-Z0-9]+/g,
-    '-',
-  )}`;
+  `hermes-chromedevtools-out-of-react-node-${url.replace(/\W+/g, '-')}`;
 
 // TODO: build abstractionf or this: T62306732
 const TARGET_CONTAINER_ID = 'flipper-out-of-contents-container'; // should be a hook in the future