Integrate slideshow view for upload cells

[tyteen4a03]

Currently, it's fairly difficult to preview selected Uploads in an upload field with hasMany: true. It would be great if Payload could integrate some sort of media viewer to make viewing the media easier.

[elliott-w]

Just adding on to this:

Would be great to have an admin option to change the view type when selecting the files, either:

• Table/list view (as it is currently)
• Gallery view (think how media select works in wordpress where the images are displayed in a grid)