[Feature Request] Add an option to multi select entries on sources

[kana-shii]

What feature should be added to Suwayomi?

Basically how multi select entries works on the library (with select all and etc), but in the sources instead, with an option to add the selected entries to the library.

Why/Project's Benefit/Existing Problem

Adding this option would save a lot of time when adding new things to the library

[schroda]

with #698 being integrated I don't see the benefit of having this

[kana-shii]

with #698 being integrated I don't see the benefit of having this

I haven't seen this feature req before mb ty for adding that