Media error styling isn't consistent with other notices

[helen]

Now that we have more generically usable notices (#27418) and they are dismissible (#31233), we should make the media upload error notices visually consistent. See attached screenshots for the current (4.2-beta) state.

[helen]

Media modal

[helen]

Media library

[helen]

Example existing error notice

[sagarjadhav]

Fixed Issue

[sagarjadhav]

Following are screenshot after changes.

Insert Media

Uploads in Media Library

[HeadOnFire]

@sagarjadhav I'm pretty sure that red 'Error' button is off the style. The red border-left is enough.

[afercia]

+1 for removing the red "button" :)

[melchoyce]

+1 for removing the "error" label.

I'd also bold the filename.

[sagarjadhav]

I have removed 'Error' label as suggested by @HeadOnFire and made file name bold. Let me your thought.

Following are screenshots.

[sagarjadhav]

Updates with given suggestions

[helen]

I was originally thinking of re-using the notice class names but given that this has front-end context as well, I think this is the right route for now.

[helen]

In 32506:

Media: Visually align upload errors with other admin notices.

props sagarjadhav.
fixes #31874.

[helen]

In 32508:

Autoprefixer for [32506]. see #31874.