Align button for `row-actions`

[jobthomas]

On mobile, the line-height for .widefat td is overridden by button in the forms.css resulting in a line-height of 16px rather than 1.5em (or 19.5px which all the a elements in the row-actions have).

Suggested fix:

wp-admin/css/list-tables.css line 1921-1925:

@media screen and (max-width: 782px) {
  .row-actions span .button-link, .row-actions span a {
    display: inline-block;
    padding: 4px 0;
    line-height: 1.5em; //add this line
  }
}

(line-height added at this specific level)

In this screencast, you can see that "Quick-edit" goes down to the right line of both "Edit" and "Trash" when line-height is enabled: ​https://cld.wthms.co/QfkOuV

[jobthomas]

screenshot of issue

[jobthomas]

cause of the faulty line-height

[burhandodhy]

Code changes as per @jobthomas suggestion

[SergeyBiryukov]

In 45756:

Administration: Correct "Quick Edit" link height in list tables for consistency with other action links.

Props jobthomas, burhandodhy.
Fixes #47815.