Add long press options for edit/delete for uploaders

[SrS2225a]

What you want to be added

When you long press one of the uploaders list items, it should show a context menu with edit/delete options in addition to the existing swiping gestures

Suggestion by @Quantum-Future in issue #19

Why you want this feature

Yes, the current swiping gesture to edit/delete an uploader works well, but as it is kind of an hidden function it is not very evident, even though it is a pretty common UI pattern. This will help make the app more accessible for users that don't like to use gestures

Screenshots

Example implementation (from geeksforgeeks):

video_2022-03-11_20-45-57.mp4