CLASSROOMIO-T-80: Replace sapper with sveltekit

src/lib/utils/functions/api.js

@@ -0,0 +1,8 @@
+export async function handleAuthChange(event, session) {
+  await fetch('/api/auth', {
+    method: 'POST',
+    headers: new Headers({ 'Content-Type': 'application/json' }),
+    credentials: 'same-origin',
+    body: JSON.stringify({ event, session }),
+  });
+}