delete habits

[wunschadresse]

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

I would like to remove a habit, which is no longer relevant, but cannot find that Option.

:bulb: Describe the solution you'd like

A delete button in the edit menu of a habit.

:raising_hand: Do you want to develop this feature yourself?

• [ ] Yes
• [x] No

additional

make protocol items removable as well.

[CrazyMarvin]

Deleting items is done by swiping them right.

This is something that could be shown in a small tutorial (#34).