fix(clerk-react): Initialize isomorphic clerk with useRef#6024

panteliselef merged 4 commits intomainclerk/javascript:mainfrom

elef/sdk-2126-userbutton-shows-fallback-indefinitely-when-remounted-acrossclerk/javascript:elef/sdk-2126-userbutton-shows-fallback-indefinitely-when-remounted-acrossCopy head branch name to clipboard