Created attachment 140235 [details]
panel icons issue

SUMMARY
Implement triangle filter for app icons, like it was done for app menu

STEPS TO REPRODUCE
1. Start single app with many windows, for example steam -> friends -> settings
2. Hover over steam icon in panel
3. Try to click right or left windows

OBSERVED RESULT
When you move your cursor and it hovers over neighbor app icon, window view will switch to that app.
It only works if you move your cursor up first, so it won't hover over neighbor icons

I recorded video, check it

EXPECTED RESULT
It lets me select window without switching to neighbor icon preview

SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.22.3
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2
Kernel Version: 5.12.15-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-4790K CPU @ 4.00GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa DRI Intel® HD Graphics 4600

ADDITIONAL INFORMATION