ui control elements for Auto-Type should reflect the actual state (disabled/enabled)

[wereia]

Summary

Auto-Type is great, but also a danger to leak information by human error.
I disable Auto-Type for most entries, but I have to check in the settings if it's active or not.

I would like it a lot when the state is visible in the ui. Just a simple observer for the state.

Auto-Type disabled for an entry would result in:

• Button in the toolbar has a disabled state (grey shade or something)
• Context menu entry for Perform Auto-Type has a disabled state (grey front instead of black)

I would find the visual feedback very helpful to quickly see if the entry is configured like I want. And to and be sure (while operating) that everything is alright with the entry and that I can't actually clicking anything unwanted by accident.

[droidmonkey]

This is no longer the case after #5864