Add 'await' keyword at async function call and remove unnecessary parameter

[jerry88kim]

Description of the Change

• Add 'await' keyword at async function 'isOpenInEditor()' call
  • 'isOpenInEditor()' returns a Promise object, so 'await' keyword should be added to use the boolean value for condition check
• Remove unnecessary parameter of 'RegExp.prototype.test()'
  • Remove second parameter of 'RegExp.prototype.test()' because it only handles the first parameter. (See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/test)

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Benefits

Fix bug and optimize code

Applicable Issues

#16858

[50Wliu]

Regex change looks good, @smashwilson I think you're probably the best person to review the path-watcher changes.

[smashwilson]

Oh hey, good catch 👍