calendars accidentally hidden

[diemelone]

Is your feature request related to a problem? Please describe. Users often hide calendars accidentally when in backend

Describe the solution you'd like make the hitbox smaller for disabling a calendar eg only the colored circle or a checkbox, and add a well visible feature to distinguish if a calendar is hidden or not. The white circle doesn't really fulfill that.

Maybe coloring the "app-navigation-entry__title" in the chosen color when active and making setting the opacity appropriate when deactivated while a checkbox in front indicates the visibility I don't really care how this is solved just something that makes it quite obvious which calendar is hidden.

Describe alternatives you've considered none

Additional context none