chore: svelte 5 🎉 (#13738)

chore: svelte 5

Co-authored-by: Michel Heusschen <59014050+michelheusschen@users.noreply.github.com>
Co-authored-by: Ben McCann <322311+benmccann@users.noreply.github.com>

web/src/lib/__mocks__/animate.mock.ts

@@ -0,0 +1,17 @@
+import { tick } from 'svelte';
+import { vi } from 'vitest';
+
+export const getAnimateMock = () =>
+  vi.fn().mockImplementation(() => {
+    let onfinish: (() => void) | null = null;
+    void tick().then(() => onfinish?.());
+
+    return {
+      set onfinish(fn: () => void) {
+        onfinish = fn;
+      },
+      cancel() {
+        onfinish = null;
+      },
+    };
+  });