Select user flag

[RyanTG]

On the website, we are adding a field to the users table called flag. It is literally for displaying flag icons. The field will hold ISO Country codes. And those codes will then be used in a url, like "https://flagcdn.com/24x18/#{msx.user.flag}.png"

In the app, we can display the flag next to usernames. And in the profile screen, I am thinking we have a button that opens a modal containing a select form.

Will add more details in here.