fix(saved posts): fix filtering Posts by multiple tags

pages/premium/saved-posts.vue

@@ -140,7 +140,8 @@ export default {
       }
 
       return POSTS.filter((POST) => {
-        return this.searchActiveTags.some((TAG) =>
+        // Filter that the post has to include every tag in the searchActiveTags array
+        return this.searchActiveTags.every((TAG) =>
           POST.data.tags.includes(TAG.toLowerCase())
         )
       })