add flag support

package-lock.json

@@ -1,17 +1,18 @@
 {
   "name": "uvpn.shop",
-  "version": "0.5.3",
+  "version": "0.5.4",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "uvpn.shop",
-      "version": "0.5.3",
+      "version": "0.5.4",
       "dependencies": {
         "@lucide/vue": "^1.16.0",
         "@tailwindcss/vite": "^4.3.0",
         "@tresjs/cientos": "^5.7.1",
         "@tresjs/core": "^5.8.1",
+        "@tw-labs/countries": "^0.0.2",
         "@vueuse/head": "^0.9.8",
         "marked": "^18.0.5",
         "swiper": "^12.1.4",
@@ -1202,6 +1203,20 @@
         "vue": ">=3.4"
       }
     },
+    "node_modules/@tw-labs/countries": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/@tw-labs/countries/-/countries-0.0.2.tgz",
+      "integrity": "sha512-mnCpRLhpMPTCMTnV18nKjLrdZ+4bUZSxdOgFWqdsZSM62RwPk1ddQCTN2XtRAR2zcLzlX91iTg2kSJ006qmXlA==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": ">=17"
+      },
+      "peerDependenciesMeta": {
+        "react": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@tweenjs/tween.js": {
       "version": "23.1.3",
       "resolved": "https://registry.npmjs.org/@tweenjs/tween.js/-/tween.js-23.1.3.tgz",