fix: deduplicate packages in user packages page. (#592)

Author: brenoepics

app/composables/useNpmRegistry.ts

@@ -382,9 +382,11 @@ export function useNpmSearch(
 
       // Update cache
       if (cache.value && cache.value.query === q) {
+        const existingNames = new Set(cache.value.objects.map(obj => obj.package.name))
+        const newObjects = response.objects.filter(obj => !existingNames.has(obj.package.name))
         cache.value = {
           query: q,
-          objects: [...cache.value.objects, ...response.objects],
+          objects: [...cache.value.objects, ...newObjects],
           total: response.total,
         }
       } else {