[ESLint PR code] reported by reviewdog 🐶 'menubarObserver' is assigned a value but never used. Raw Output: {"ruleId":"no-unused-vars","severity":1,"message":"'menubarObserver' is assigned a value but never used.","line":17,"column":5,"nodeType":"Identifier","messageId":"unusedVar","endLine":17,"endColumn":20,"suggestions":[{"messageId":"removeVar","data":{"varName":"menubarObserver"},"fix":{"range":[339,366],"text":""},"desc":"Remove unused variable 'menubarObserver'."}]}