refactor: simplify tray color/count updates #1756

Job	Run time
Prepare CI	4s
Lint App / biomejs	14s
Tests / Run Tests	1m 53s
Tests / SonarQube Cloud Analysis	1m 4s
Build / Build Linux (electron-builder)	4m 1s
Build / Build macOS (electron-builder)	2m 54s
Build / Build Windows (electron-builder)	2m 46s
	12m 56s

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