Inconsistent email login and subscription behaviour

[paskal]

Logging in with email requires the user to click the Submit button:

However, posting the token into the email subscription form posts it automatically without pushing any buttons:

I propose to make the behaviour consistent and make email login submit the form once the token is parsed, the same as the subscription form behaves at the moment.

[akellbl4]

This comment relates to this issue.
As I mentioned there, all drop downs should use the same code for consistency.

The thing with tokens is we don't want to close the dropdown if we accidentally click outside of it because it can create confusion. For other cases it's fine to close dropdown with click outside because you won't loose any progress