refactor: simplify tray color/count updates #1768

Job	Run time
Prepare CI	3s
Lint App / biomejs	22s
Tests / Run Tests	1m 30s
Tests / SonarQube Cloud Analysis	1m 0s
Build / Build Windows (electron-builder)	2m 57s
Build / Build macOS (electron-builder)	4m 34s
Build / Build Linux (electron-builder)	4m 18s
	14m 44s

Provide feedback