[MU4 Issue] Various text clipping issues

[cbjeukendrup]

Describe the bug
Due to localisation and other reasons, various texts require more space than anticipated, causing clipping and other problems.
Let's collect these problems in this issue.

• MuseScore 3.6 migration dialog with Dutch (Nederlands) localisation ("MuseScore 3.…") and apparently others too: warning about format falls off the screen, hiding important information #20279
  

• [MU4 Issue] Project settings has visual overflow despite hardcoded size #15411

• Instrument family names in New score dialog not fully visible due to visual overflow #15395

• [MU4 Issue] Description text obscured in Replace Instrument window #15572

• [MU4 Issue] Text impossible to read on export audio files #15537

• Cloud upload success dialog in German: https://musescore.org/en/node/342293 (fixed in #16302 for 4.0.2)
  

• Workspace dialog in Czech (fixed in #16302 for 4.0.2)
  

• Barline inspector in Dutch (fixed in #16302 for 4.0.2)
  

• The playback toolbar when the piece has more than 100 bars

  Schermopname.2022-10-15.om.15.02.43.mov

• Preferences > "Reset Preferences" with German localisation
  
  (General problem: we must never give a text button a fixed width; if we want the default width of the button to be bigger, we can use the margins or minWidth properties. But never set width directly.)

Note:
Please add any other text clipping problems that you find as comments to this issue!