chore(lint): remove dead eslint-disable directives

The project lints with Biome only, so none of these 78 directives across 57
files ever suppressed anything. Directives that carried the rationale for a
flagged dynamic index access keep that rationale as a plain comment.

src/app/admin/ads/ads-table.tsx

@@ -49,7 +49,6 @@ export function AdsTable({ ads }: { ads: AdRow[] }) {
 					{ads.map((ad) => (
 						<tr key={ad.id}>
 							<td>
-								{/* eslint-disable-next-line @next/next/no-img-element */}
 								<img
 									src={ad.image}
 									alt=""