pr05 Typescript Migration #11: Migrate server/routes folder

[clairep94]

pr05 Typescript Migration 11: Migrate the server/routes folder

Should be reviewed after #3636

Changes:

• simple update to ts for most files in the routes folder
  • Individual routes are expected to be reorganised in later PRs for clarity (eg. user routes file can be organised & annotated by their subdomain, like 'auth')
  • Attempted to migrate server.routes.js but this required Projects and User models to be migrated first

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

[clairep94]

@raclim @khanniie ready for review after the server ts deps setup PR

[khanniie]

looks great, just a few small comments!!!

[clairep94]

@khanniie I updated to address some feedback, so might need a re-review when you're ready!

[raclim]

Thanks so much @clairep94 and @khanniie!