Pass userId to /api/submissions GET endpoint from frontend#22

Copilot wants to merge 3 commits intofeat/personal-siteString-sg/string-v2:feat/personal-sitefrom

copilot/sub-pr-13-9f287e9a-fcff-46e3-b8ec-0c19f849fa93String-sg/string-v2:copilot/sub-pr-13-9f287e9a-fcff-46e3-b8ec-0c19f849fa93Copy head branch name to clipboard