Option to show/hide the "Tasks" section in the side menu

[RedSteel-1]

Is your feature request related to a problem? Please describe. I don't use the "Overdue/Today/Next 5 days" lists, and they take space in the side menu. However, it's not possible to disable/hide these 3 standard lists under this standard "Tasks" section.

Describe the solution you'd like Add an option to show/hide the "Tasks" section in the side menu

[CampelloManuel]

These 3 indeed take up a lot of space, as noticed in #500 Possible implementations:

• add a toggle in the preferences to completely hide the 3 entries
• add a small "collapsible view" that contains the 3 entries and that must first be opened to interact with them

I'll think about it