Tweak Style > Chord symbols page

[cbjeukendrup]

Avoid text clipping in dropdowns
Avoid hard-coded widths
Remove unnecessary property assignments
etc

N.B. the dropdown changes also affect the Measure numbers and Repeats page, so those need a regression check

[avvvvve]

I don't think it's the best idea to have the dropdown hug the width of its contents. It's one thing that it's a little clunky that adjacent dropdowns all have different widths, but if you choose a really short word and then reopen the dropdown, the dropdown itself isn't wide enough to display the longer labels.

Screen.Recording.2025-10-27.at.12.12.13.PM.mov

I would just leave the widths fixed. Perhaps those three in the playback section just need to be wider—in Preferences the dropdowns are 208px so we could try that. Generally I think it would be good to make it so the expanded dropdown contents can exceed the width of the dropdown button, but that's a note or the app in general, not just Styles.

The reset buttons certainly are looking better though!

[cbjeukendrup]

The fixed widths were problematic for translations though. However I can turn them into minimum widths, allowing them to grow wider when necessary. I'll also change it so that the width is based on the wisest dropdown item rather than the current one.

(The thing is that these are not the same drop downs as we use elsewhere, because don't work well when used in QML pages that are embedded in QtWidgets... so they might behave a bit differently.)