Ability to hide events without hiding calendars

Is your feature request related to a problem? Please describe.

As a user I might have lots of personal and shared calendars, I don't always need all the calendars listed in the list but I do need to be able to quickly show and hide events.

At the moment the event visibility is linked to the calendar being enabled, so one need to disable the calendar to hide events. I past versions the disabled calendar would go into a "hidden calendars" section, in the current version the disable calendars are still in the main list.

Describe the solution you'd like

I would be nice to have the ability to both hide calendars that are not needed, and the ability to quickly show and hide events for the calendars that are needed.

This could be accomplished by,

1. Adding a "more calendars (arrow icon)" option under each calendar list section "personal", "shared", etc. Clicking this option would show/hide the disabled calendars
2. replacing the calendar "pencil" icon, with a menu, that contains "enable/disable" and edit. The edit options could also be included in the drop down menu for easier discovery, the "share", "color", "delete", "import", "export" options could be directly included in the drop down menu.
3. Make the calendar name clickable, to be able to quickly show/hide events for each calendar

Describe alternatives you've considered

No response

Additional context

No response

Start by reviewing the calendar list sections and the existing calendar enable/disable and pencil controls described in the issue. The requested behavior needs a design decision before implementation: users should be able to hide events independently from hiding calendars, while still accessing disabled calendars. No files or tests are named, so identify the relevant calendar-list entry point and add coverage for both visibility states.