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

admin/src/features/configuration/styles.ts

@@ -77,7 +77,6 @@ export const styles = stylex.create({
 	},
 	table: {
 		width: "100%",
-		minWidth: "max-content",
 		borderCollapse: "collapse",
 		fontSize: "0.875rem",
 		lineHeight: "1.25rem",
@@ -102,8 +101,10 @@ export const styles = stylex.create({
 		flexDirection: "column",
 		gap: "0.25rem",
 	},
+	/** A group name can be one unbroken string wider than a phone's line. */
 	masterLink: {
 		display: "block",
+		overflowWrap: "anywhere",
 		borderRadius: metrics.radius,
 		paddingInline: "0.75rem",
 		paddingBlock: "0.375rem",