fix: replace orphaned shareModal i18n keys in GiftResult

GiftResult.tsx referenced gift.shareModalCopied and shareModalCopyAll
which were removed with the modal. Use common.copied and add new
gift.copyMessage key instead.

src/locales/en.json

@@ -4248,6 +4248,7 @@
     "unlimitedTraffic": "Unlimited",
     "shareModalActivateVia": "Activate via bot:",
     "shareModalActivateViaCabinet": "Or via website:",
+    "copyMessage": "Copy message",
     "shareToastCopied": "Message copied",
     "shareToastTapCopy": "tap to copy again"
   }

src/locales/ru.json

@@ -4815,6 +4815,7 @@
     "unlimitedTraffic": "Безлимит",
     "shareModalActivateVia": "Активировать через бота:",
     "shareModalActivateViaCabinet": "Или через сайт:",
+    "copyMessage": "Скопировать сообщение",
     "shareToastCopied": "Сообщение скопировано",
     "shareToastTapCopy": "нажмите чтобы скопировать ещё раз"
   }

src/pages/GiftResult.tsx

@@ -153,7 +153,7 @@ function CodeOnlySuccessState({
             >
               <path strokeLinecap="round" strokeLinejoin="round" d="M5 13l4 4L19 7" />
             </svg>
-            {t('gift.shareModalCopied', 'Copied!')}
+            {t('common.copied', 'Copied!')}
           </>
         ) : (
           <>
@@ -170,7 +170,7 @@ function CodeOnlySuccessState({
                 d="M8 16H6a2 2 0 01-2-2V6a2 2 0 012-2h8a2 2 0 012 2v2m-6 12h8a2 2 0 002-2v-8a2 2 0 00-2-2h-8a2 2 0 00-2 2v8a2 2 0 002 2z"
               />
             </svg>
-            {t('gift.shareModalCopyAll', 'Copy message')}
+            {t('gift.copyMessage', 'Copy message')}
           </>
         )}
       </button>