[hellopablo]

Summary

• A table that is the last thing in a fieldset no longer keeps Bootstrap's 1rem bottom margin. The card border was trapping that margin as an empty strip along the bottom.
• The same rule covers a table wrapped in one element, and a table followed only by a sibling hidden with jQuery .toggle().

Test plan

• Open an admin page whose fieldset ends in a plain table (Find & Replace → My searches) and confirm the last row sits on the card's bottom border.
• Confirm a .table-rounded table inside a fieldset is unchanged.
• Confirm a table that is not the last element in a fieldset still has space beneath it.