refactor: Replace Webpack with Vite (#53)

src/pages/background/lib/addCourse.ts

@@ -0,0 +1,17 @@
+import { UserScheduleStore } from '@shared/storage/UserScheduleStore';
+import { Course } from '@shared/types/Course';
+
+/**
+ *
+ */
+export default async function addCourse(scheduleName: string, course: Course): Promise<void> {
+    const schedules = await UserScheduleStore.get('schedules');
+    const activeSchedule = schedules.find(s => s.name === scheduleName);
+    if (!activeSchedule) {
+        throw new Error('Schedule not found');
+    }
+
+    activeSchedule.courses.push(course);
+
+    await UserScheduleStore.set('schedules', schedules);
+}