[CLNP-7755] feat: migrate to @sendbird/react-native-create-thumbnail for thumbnail creation#278

OnestarLee merged 3 commits intomainsendbird/sendbird-uikit-react-native:mainfrom

feat/support-sendbird-create-thumbnailsendbird/sendbird-uikit-react-native:feat/support-sendbird-create-thumbnailCopy head branch name to clipboard