Support set Memory from UI

[bdqfork]

Summary

Fixes #837

Support set Memory from UI, default is motorhead. However, I found motorhead archived.

Test plan

[vercel[bot]]

@bdqfork is attempting to deploy a commit to the Mersenne Team on Vercel.

A member of the Team first needs to authorize it.

[bdqfork]

I'm not very familiar with SAML, so I don't currently have support for it. I will do later.

[homanp]

@bdqfork thank you reveiwing and merging in