No 'end' Padding on media upload status on media-new

[Ipstenu]

Source of issue: ​https://wordpress.org/support/topic/right-and-left-padding-on-add-new-media-page

When you upload media on the media-new page, the new white bar background causes the progress bar to bump up with the end side:

If the padding is adjusted to 7px all around, it gives it a more comfortable look. Patch attached.

[Ipstenu]

Changing margin to 7px all around for new media uploads

[ocean90]

In 29121:

Improve styling of progress bar on wp-admin/media-new.php.

props Ipstenu for initial patch.
fixes #28838.

[ocean90]

Related: #28220