CLASSROOMIO-T-108: Attendance improvement + complete lms exercise

src/lib/utils/store/attendance.js

@@ -1,3 +0,0 @@
-import { writable } from 'svelte/store';
-
-export const attendance = writable({});

src/lib/utils/store/attendance.ts

@@ -0,0 +1,10 @@
+import { writable } from 'svelte/store';
+
+export const attendance = writable<{
+  [key: string]: {
+    [key: string]: {
+      is_present: boolean;
+      id: number;
+    };
+  };
+}>({});