Fix PR state detections on files/commits page (#229)

Author: SunsetTechuila

index.ts

@@ -298,8 +298,8 @@ TEST: addTests('isQuickPR', [
 const getStateLabel = (): string | undefined => $([
 	'.State', // Old view
 	// React versions
-	'[class^="StateLabel"]',
-	'[data-testid="header-state"]',
+	'[class^="StateLabel"]', // TODO: Remove after July 2026
+	'[class^="prc-StateLabel-StateLabel"]',
 ].join(','))?.textContent?.trim();
 
 export const isMergedPR = (): boolean => getStateLabel() === 'Merged';