Started to update the exam to work with Zustand for the history review

src/utils/stats.ts

@@ -91,5 +91,10 @@ export const formatExerciseAverageScoreStats = (stats: Stat[]): {label: string;
 	});
 };
 
+export const getExamsBySession = (stats: Stat[], session: string) => {
+	const grouped = groupBySession(stats);
+	return grouped[session].map((exam) => exam.exam);
+};
+
 export const groupBySession = (stats: Stat[]) => groupBy(stats, "session");
 export const groupByDate = (stats: Stat[]) => groupBy(stats, "date");