User should be able to edit their own profile

[nickllerandi]

Cleanup Profile.js: create profileContent const and move that to main return content

[nickllerandi]

@thejackjiang , curious what you think about this isOnOwnProfilePage approach. I was looking for a way to keep all profile routes on the same path, not making any profiles private, but give the user the option to edit their own profile if their are logged in.

https://github.com/nllerandi/fsm/blob/nllerandi/User-should-be-able-to-edit-their-own-profile%2347/client/src/components/profiles/Profile.js