Added tooltips to the student dashboard

src/dashboards/Student.tsx

@@ -86,16 +86,19 @@ export default function StudentDashboard({user}: Props) {
 						icon: <BsFileEarmarkText className="text-mti-red-light h-6 w-6 md:h-8 md:w-8" />,
 						value: Object.keys(groupBySession(stats)).length,
 						label: "Exams",
+						tooltip: "Number of all conducted completed exams",
 					},
 					{
 						icon: <BsPencil className="text-mti-red-light h-6 w-6 md:h-8 md:w-8" />,
 						value: stats.length,
 						label: "Exercises",
+						tooltip: "Number of all conducted exercises including Level Test",
 					},
 					{
 						icon: <BsStar className="text-mti-red-light h-6 w-6 md:h-8 md:w-8" />,
 						value: `${stats.length > 0 ? averageScore(stats) : 0}%`,
 						label: "Average Score",
+						tooltip: "Average success rate for questions responded",
 					},
 				]}
 			/>