Pr05 Typescript Migration #21: client/modules/User

[clairep94]

Context:

I was trying to record a demo of how I migrate files for the final presentation, and got a bit hyper-focused so I ended up migrating the majority of the client/modules/User folder

• This also helped me figure out refinements necessary for previously defined types, changes for which are in Pr05 Typescript Migration #20: Refine server/types & client/reducer types #3704

Contains changes from #3702, #3703, #3704

• Should be reviewed after those for easier review

I have also manually tested these forms to make sure nothing broke

Changes:

client/modules/User pages & components related to the User api

• Doesn't include stuff related to controller as it's not migrated yet

Notes:

Cherry-picked relevant commits from the giant rough-work PR here for easier review

Checks:

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123
• meets the standards outlined in the accessibility guidelines

[clairep94]

@raclim @khanniie