✨ Add support for multiple remote timetables

- Add timetable "title" column to db
- Make API return array of timetables
- Add settings page for selecting a timetable
- Add InfoCard if no timetable is selected

server/prisma/schema.prisma

@@ -9,6 +9,7 @@ datasource db {
 
 model Timetable {
   id         Int       @id @unique @default(autoincrement())
+  title      String    @default("Default")
   createdAt  DateTime  @default(now())
   updatedAt  DateTime  @updatedAt
   class      String