Move some user code to concerns

[alexander-cit]

Concerns are not perfect. They do not really isolate the code but still separate it into different files, which makes it hard to connect the dots sometimes.

But in this case, these two pieces of logic (groups and roles) are not connected to the rest of the User code. And more importantly, the length of User went out of control. It was hard to grasp what it does in general, hard to navigate through its methods, and even hard to breathe just looking at it.

[notion-workspace[bot]]

Update user email when logged in with Vienna SSO

[jamesspeake]

Oh, but you do have a linting issue

[cl-dev-bot]

	Warnings
:warning:	The changelog is empty. What should I put in the changelog?
:warning:	The PR title contains no Jira issue key (case-sensitive)
:warning:	The branch name contains no Jira issue key (case-sensitive)

	Messages
:book:	Run the e2e tests
:book:	Check translation progress

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