[MU4 Issue] Lyrics have too much vertical spacing between verses and hyphens too high

[wizofaus]

Describe the bug
The vertical gap between verses of lyrics is far too great, and hyphens between words are rendered too high (almost top aligned)

To Reproduce
Steps to reproduce the behavior:

1. Create a score with some notes
2. Add a lyric with a hyphen (NB this might not be possible in MU4, you may need to do in MU3 and load)
3. Add a second verse lyric
4. Note that vertical hyphen alignment is wrong and that second verse is shown too far below 1st verse

Expected behavior
Same as MU3.6

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• Windows 10, built with MSVC 2019

Additional context
This is seems to be due to the global "FontPaintDevice" that is passed into QFontMetricsF in qfontprovider.cpp for lineSpacing() and xHeight(). If no device is passed in to QFontMetricsF , the values are returned as per MU3.6 and the alignment looks correct.
But I'm not sure what the reasoning behind having this device is, and why it would make sense for some functions but not others.
Update: I believe the correct fix is to actually not multiply any info that comes back from fontMetrics by MScore::pixelRatio, which is what happens currently with both lineSpacing() and xHeight() (in textbase.cpp and lyricsline.cpp)

[Jojo-Schmitz]

I wonder whether this is related to all lyrics being seen as even one, due to a bug, see #8762 (review) and #7627