Resolve "Frontend for Models"

Closes #1 (closed)

aleksis/apps/lesrooster/frontend/components/break.graphql

-query breakSlots {
-    items: breakSlots {
+query breakSlots($orderBy: [String], $filters: JSONString) {
+    items: breakSlots(orderBy: $orderBy, filters: $filters) {
         id
         name
         validityRange {