On unlocked password protected share rooms, add a "Forget password" action...

... item, and include an unlocked icon on the list entries.

While this fixes #208, it's looking like the conveyance of credentials between accounts was due to something else - the only thing I can suppose is that I visited the share room via the SpiderOak web interface, and got a cookie that way.

Anyway, this adds a Forget Password action item, and visible indication that a share room is password protected when it is in the unlocked state, as well as when it is locked.