Created attachment 145000 [details]
Example of pager bug

SUMMARY
Using an activity pager with a vertical panel results in the pager becoming tiny (as it scales to panel width) instead of adjusting its height.


STEPS TO REPRODUCE
1. Create a vertical panel
2. Have at least 3 activities
3. Add an activity pager to the panel

OBSERVED RESULT
Activity pager becomes small and unusable due to scaling with panel width

EXPECTED RESULT
Activity pager should extend further down the panel and adjust its height instead of width

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.4
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2
Kernel Version: 5.15.12-arch1-1 (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION
This also happens with the virtual desktops pager, I might make a separate issue about that as well