suggestion

Hello, friends.
Thank you for your fine program. I really appreciate the dark theme.
If this is not the place to present bug reports and suggestions, please direct me to the correct spot. Otherwise, I will share things here, little by little,
1. In the same way that the "navigation" window can be docked, and then scaled to make more space available for the sheet music in view, I think it would be nice to have the piano keyboard scalable also.

2. Is there any way to keep the all icons always in view, on the "note input" toolbar?

3. Why not allow the playback window to be dockable? I would find it useful for the sake of accessing speed adjustment.

4. How about a little more flexibility with the font size and style for footers?

5. Why doesn't MuseScore open automatically the same workspace that I was using in the previous session? For example, I like to keep my navigation panel open at all times, but when I restart MuseScore, it it out of view again.