The new display of notes with flats only works for notes >= 1/4

### System Information

win10

### LMMS Version(s)

Alpha.2

### Most Recent Working Version

All versions < Alpha.1 with only #'s

### Bug Summary

This image

Shows it.
Notes with length < 1/4 wont show any label. Its because text is all-or-nothing, a dumb limitation of qT
Imo it should _not_ be 'solved' by making the test smaller, instead it should be enough to only show sharps as all other DAWs i know of also do, or perhaps make it a user-choice weather sharps _or_ flats should be on note labels.

### Expected Behaviour

All notes of same length should have labels

### Steps To Reproduce

Drop some notes in piano-roll

### Logs

Click to expand

### Screenshots / Minimum Reproducible Project

_No response_

### Please search the issue tracker for existing bug reports before submitting your own.

- [x] I have searched all existing issues and confirmed that this is not a duplicate.

Start by reproducing the issue in the piano-roll on LMMS Alpha.2 with notes shorter than 1/4, comparing sharp and flat labels. Done means notes of the same length display labels consistently, with the label behavior matching the chosen design.

Written by the indexing model from the issue text.