Coder plugin: soften the invalid token error

[bpmct]

just a nit:

I think it is nice we explain why the user was logged out, but could we make this error a bit muted and/or dismissable? On the catalog page, it immediately draws my attention and there is no way to dismiss. Perhaps the user got deactivated from Coder and will never be able to log in again (or doesn't want to) Since the token is in localStorage, there is no clear way to remove it.