Feature Request: lengthen the visible portion of username field in both edit and normal mode

Hello,
Most sites require my email as my username. Unfortunately the visual length of the username cuts the field off half way through the email address. If I used the same email address at every site, that would be OK. However, I have the same initial part (prior to the @ sign) with different providers, so I don't know which email I use just looking at 1Password. This matters when I want to change from one userid/email to another. There appears to be plenty of room to show the whole username in the desktop version (I use the desktop version when I change info instead of using the browser extension) so it should just be a matter of extending the length shown.
Thanks