Multi-delete objects

[barefootstache]

Let object be note, task, diary, etc.

Is your feature request related to a problem? Please describe. Currently to delete an object, one needs to go into every object, and click on the delete icon.

Describe the solution you'd like Would like to long-press on an object and then at the top a count of selected objects is visible and there is a button to select all. Then one can click on delete (a new button also at the top) to delete all the objects.

Additional context This feature would speed up the deletion process especially by hundreds of entries.