improve module store with has

core/src/stores/moduleStore.ts

@@ -24,5 +24,11 @@ export const useModuleStore = defineStore('moduleStore', {
     },
   },
   getters: {
+    has: (state) => (handleOrNamespace: string) => {
+      const target = String(handleOrNamespace).toLowerCase();
+      return Object.values(state.modules).some(
+        (mod) => mod && (String(mod.handle).toLowerCase() === target || String(mod.namespace).toLowerCase() === target)
+      );
+    },
   },
 });