admin: tables fit a phone, their first cell carrying the hidden columns, and no positioned label widens the page

admin/src/features/activity/HistoryActivity.tsx

@@ -36,9 +36,8 @@ const styles = stylex.create({
 	loading: {
 		minHeight: "24rem",
 	},
-	tableWrap: {
-		marginTop: "1rem",
-		overflowX: "auto",
+	/** The shared scrolling wrapper, framed. */
+	framedTable: {
 		borderRadius: metrics.radius,
 		borderWidth: 1,
 		borderStyle: "solid",
@@ -153,7 +152,7 @@ export default function HistoryActivity({ search, onClear }: Props) {
 				</div>
 			) : (
 				<>
-					<div tabIndex={0} {...stylex.props(styles.tableWrap, shared.focusRing)}>
+					<div tabIndex={0} {...stylex.props(shared.tableWrap, styles.framedTable, shared.focusRing)}>
 						<table {...stylex.props(styles.table)}>
 							<ActivityTableHead />
 							<tbody>