Check `WebView` user agent for in-app cases

is-in-app.ts

// @see https://stackoverflow.com/questions/71459572/not-possible-to-detect-webview-with-javascript-and-user-agent-on-old-android-ver
const rules = [
  // If it says it's a webview, let's go with that.
  'WebView',
  // iOS webview will be the same as safari but missing "Safari".
  '(iPhone|iPod|iPad)(?!.*Safari)',
  // https://developer.chrome.com/docs/multidevice/user-agent/#webview_user_agent
  'Android.*Version/[0-9].[0-9]',
  // Also, we should save the wv detected for Lollipop.
  // Android Lollipop and Above: webview will be the same as native,
  // but it will contain "wv".
  'Android.*wv',
  // Old chrome android webview agent
  'Linux; U; Android',
]

export const isInApp = () => {
  const userAgent: string | undefined = (
    navigator.userAgent || navigator.vendor || (window as any).opera
  )

  if (userAgent) {
    const regex = new RegExp(`(${rules.join('|')})`, 'ig')

    return !!userAgent.match(regex)
  }

  return false
}