refactor(editor): Add typed event bus (no-changelog) (#10367)

Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/design-system/src/utils/form-event-bus.ts

@@ -0,0 +1,12 @@
+import { createEventBus } from './event-bus';
+
+export interface FormEventBusEvents {
+	submit: never;
+}
+
+export type FormEventBus = ReturnType<typeof createFormEventBus>;
+
+/**
+ * Creates a new event bus to be used with the `FormInputs` component.
+ */
+export const createFormEventBus = createEventBus<FormEventBusEvents>;