Media slug field is artificially narrow - Should use max available width

[abitofmind]

Reproduction

1. Go to: WordPress > Media > Library /wp-admin/upload.php
2. Click any image
3. The media popover opens /wp-admin/upload.php?item=123
4. Click "Edit more details"
5. The media maximum detail editor opens /wp-admin/post.php?post=123&action=edit
6. Screen Options > Make sure the option "Slug" is enabled.

Actual: This slug field is abnormally narrow (input size=13).

Expected: This slug field uses the maximum available width so that I can see and edit my medium to normal length slugs at once.

The fix is rather easy: Make sure this field gets a CSS width: 100% and it will optimally utilize the space which any contemporary responsive layout foresees.

Screenshot shows both the problem and the fix.

[sabernhardt]

Thanks for the report!

This occurs in other post types when using the Classic Editor, too. Tickets #16346 and #31261 already proposed widening the field, so please continue the discussion on #16346.

[abitofmind]

Thanks for carrying it over to the original issue and there trying to get your patch into the current stable version!