fix(tanstack-router): Check for `fromLocation` existence before reporting pageload#18463

logaretm merged 2 commits intodevelopgetsentry/sentry-javascript:developfrom

awad/js-1264-core-web-vitals-arent-reported-when-enabling-tanstack-routergetsentry/sentry-javascript:awad/js-1264-core-web-vitals-arent-reported-when-enabling-tanstack-routerCopy head branch name to clipboard