Added a new module called Level for level testing

src/dashboards/Teacher.tsx

@@ -138,7 +138,7 @@ export default function TeacherDashboard({user}: Props) {
 			level: calculateBandScore(s.score.correct, s.score.total, s.module, s.focus!),
 		}));
 
-		const levels: {[key in Module]: number} = {reading: 0, listening: 0, writing: 0, speaking: 0};
+		const levels: {[key in Module]: number} = {reading: 0, listening: 0, writing: 0, speaking: 0, level: 0};
 		bandScores.forEach((b) => (levels[b.module] += b.level));
 
 		return calculateAverageLevel(levels);