[Feature]: Improve "Unavailable" status on lock card

[peter-dolkens]

Requirements

• I have updated Mushroom to the latest available version
• I did a search to see if there is a similar issue or if a pull request is open.

Is your feature request related to a problem?

Using Unifi Access, when clicking "Unlock", the lock becomes "Unavailable" for 5 seconds while the lock is unlatched, before it relocks.

The inbuilt Home Assistant UI just disables the button, but doesn't otherwise change it - notice that "Lock" is simply greyed out

The Mushroom Card however changes UI significantly as shown

Describe the solution you'd like

Ideally I'd like the button to simply grey out and become un-clickable when it's listed as "unavailable"

This still indicates the entity is unavailable but we should be able to continue to represent the last-known state of the door (which in this case is the current state)

Describe alternatives you've considered

I could also file a change request with the creator of the Unifi Access add-on, but the functionality they're exposing does make some degree of sense. When the lock is unlocked normally, the system becomes "unavailable" for all intents and purposes until the "locked" event is fired.

This can be seen in the logs

Additional context

No response

[piitaya]

Mushroom icon is grey when the entity is inactive (for turned off lights for example). That's why the unavailable state is using the badge
Also, a lock should not be unavailable when locking, it must use the locking state. I think this should be fixed in the unifi access custom component.