UI bug importing and signing account age witness
There's a bug when importing unsigned account age witness data in order to sign it.

Go to Account > `ctrl + i` > `ctrl + o`. The following window will display:

<img width="931" alt="image" src="https://github.com/user-attachments/assets/11af53ce-01a7-478b-98de-3cd15b6ec90f">

The "Unsigned Pubkeys" text area is highlighted blue and the arbitrator cannot click into it or enter text.