[FRONTEND] Send password reset email to user after they sign up

[bcho892]

Is your feature request related to a problem? Please describe.

Right after the user signs up for an account there is a password setup step in the final page. However this may not be the most appropriate to accommodate for say the user leaving the page after signing up. For this reason, when calling the /signup endpoint is successful we should call sendPasswordResetEmail(auth, email).

You will have to edit onSuccess in client\src\components\composite\SignUpForm\PageConfig\PageConfig.tsx

BEFORE MERGING

• [ ] Storybooks created where possible
• [ ] Tested with nock if data fetching
• [ ] Tests written for critical interactions
• [ ] PR Reviewed (For non-trivial changes)
• [ ] Changes tested after rebasing on master or merging in master (hint: git fetch origin master:master, then git rebase master or git merge master)
• [ ] All required PR checks passing