message: Open updates prompt as a background tab
  Fixes
diff: @@ -50,7 +50,8 @@ browser.runtime.onInstalled.addListener(async ({reason}) => {
  return;
  }
  browser.tabs.create({
  - url: 'https://github.com/sindresorhus/refined-github/issues/1137'
  + url: 'https://github.com/sindresorhus/refined-github/issues/1137',
  + active: false
  });
  browser.storage.local.set('userWasNotified', true);
  });
  