User Interface Improvements

[thyringer]

First of all, thank you for the great work on KeePassXC!

Here is a small suggestion for improvement that might be met with approval:

You can already define your own attributes, which is very useful for not just storing usernames and passwords. However, these attributes seem a bit neglected, even though they are usually more important for storing certain other sensitive data.

How about making the note field where the attributes are currently located and presenting the attributes in the first tab, where there is also a lot more space? You could unify the attributes with the conventional fields "username" and "password" so that you no longer have a username or password for certain entries if you don't need them, or you can simply rename them.
"Username" and "Password" would then only be attributes with special meaning, or properties that can be assigned to attributes (from an internal perspective). For example, it is often the case that people simply log in with an email address instead of a user name.

Or a separate tab in the second place for the notes? Maybe: General — Notes — Attachments — …
The tab widget should simply be used more to make the information clearer.

I think this small change would greatly increase the ergonomics and utility. And it shouldn't be very complicated since it's more of a GUI thing. What do you think?

(By the way, I notice that the field names and fields are not completely aligned

[droidmonkey]

You are using classic theme which is qt native theming and causes all sorts of alignment problems (main reason why we made our own themes).

Showing advanced attributes as first-class data items is very much related to #8228 and #863