feat: Translate frontend/src/i18n/en.json in ru

93% of minimum 50% translated source file: 'frontend/src/i18n/en.json'
on 'ru'.

Sync of partially translated files: 
untranslated content is included with an empty translation 
or source language content depending on file format

frontend/src/i18n/ru.json

@@ -7,7 +7,7 @@
     "copy": "Копировать",
     "copyFile": "Скопировать файл",
     "copyToClipboard": "Скопировать в буфер",
-    "copyDownloadLinkToClipboard": "Copy download link to clipboard",
+    "copyDownloadLinkToClipboard": "Скопировать ссылку в буфер",
     "create": "Создать",
     "delete": "Удалить",
     "download": "Скачать",