Automatically activate valid certificates if available

[jtary]

Describe the bug
Currently, it's possible for the active certificate to be invalid, while having other valid certificates available. These can be activated from the settings page, but this is unintuitive. I would be much better UX for the active certificate to be updated automatically to a valid cert if one is available.

The bug aspect of this is the many ways in which a user can be told they have a valid cert, when they don't, or vice-versa.

Additional context
Currently the active cert is stored in an atom. This should be changed to a getter function that returns a cached value, and can update the value if it's appropriate to do so.

Note: This change would have require significant re-work of the various pages that use the certificate, so it could be time consuming and has a higher risk of introducing regressions. Time for development and testing should be planned accordingly.

[yshsaxena]

Hi @jtary and @anilmurty, wanted to take this up!!

[anilmurty]

Thanks @yshsaxena - please go ahead!

[yshsaxena]

hi @jtary, is only one cert can remain active at a time?

[anilmurty]

@yshsaxena - correct. so yes, it's a bug that it is allowing more than one to be activated. Good catch :)

[anilmurty]

Hi @yshsaxena - are you still working on this?