Delete button in the gallery and more than 96 per page

[Rubyer77]

Is your feature request related to a problem? Please describe.
When reviewing large number of screenshots, two UI features are missing:

1. delete a record directly from the Gallery page (currently the delete icon is only the Details page)
2. select more than 96 per page. Adding one large number like 1024 would be great.

Describe the solution you'd like

1. A 'delete' icon on every screenshot shown in the Gallery. Clicking on it calls the delete API.
   No need for confirmation popup or page reload, as the goal is to review and delete quickly large amounts of screenshots.
2. Add 1024 in the dropdown