feat(dashboard, medusa) add metadata to pages (#9433)

**WIP**
- add metadata component and edit route to missing pages
- fix API issues around metadata in certain domains

---

FIXES CC-554

packages/admin/dashboard/src/routes/users/user-metadata/index.ts

@@ -0,0 +1 @@
+export { UserMetadata as Component } from "./user-metadata"

packages/admin/dashboard/src/routes/users/user-metadata/user-metadata.tsx

@@ -0,0 +1,27 @@
+import { useParams } from "react-router-dom"
+
+import { MetadataForm } from "../../../components/forms/metadata-form"
+import { RouteDrawer } from "../../../components/modals"
+import { useUpdateUser, useUser } from "../../../hooks/api"
+
+export const UserMetadata = () => {
+  const { id } = useParams()
+
+  const { user, isPending, isError, error } = useUser(id)
+  const { mutateAsync, isPending: isMutating } = useUpdateUser(id)
+
+  if (isError) {
+    throw error
+  }
+
+  return (
+    <RouteDrawer>
+      <MetadataForm
+        isPending={isPending}
+        isMutating={isMutating}
+        hook={mutateAsync}
+        metadata={user?.metadata}
+      />
+    </RouteDrawer>
+  )
+}