fix: use public wpUrl runtime config for auth refresh token mutation

wp-content/themes/moonshine/server/utils/auth.ts

@@ -42,8 +42,8 @@ function getAuthUser(user: AuthUserFragment): User {
 
 // Refresh auth token by calling remote GraphQL endpoint directly
 export async function refreshAuthToken(refreshToken: string): Promise<string | undefined> {
-  // TODO: const { public: { graphql: { endpoint } } } = useRuntimeConfig();
-  const endpoint = `${process.env.NUXT_WP_URL || "https://cultureat.ledevsimple.ca"}/graphql`;
+  const { public: { wpUrl } } = useRuntimeConfig();
+  const endpoint = `${wpUrl}/graphql`;
   const { data } = await executeGraphQLHTTP<ResultOf<"AuthRefreshToken">>({
     query: AuthRefreshTokenDocument,
     variables: { refreshToken },