gui, man, authors: Update docs, translations, and contributors

gui/default/assets/lang/lang-ru.json

@@ -282,7 +282,6 @@
     "Preview": "Предварительный просмотр",
     "Preview Usage Report": "Посмотреть отчёт об использовании",
     "QR code": "QR код",
-    "QUIC": "QUIC",
     "QUIC LAN": "QUIC LAN",
     "QUIC WAN": "QUIC WAN",
     "QUIC connections are in most cases considered suboptimal": "QUIC connections are in most cases considered suboptimal",
@@ -293,7 +292,6 @@
     "Received data is already encrypted": "Полученные данные уже зашифрованы",
     "Recent Changes": "Последние изменения",
     "Reduced by ignore patterns": "Уменьшено шаблонами игнорирования",
-    "Relay": "Relay",
     "Relay LAN": "Relay LAN",
     "Relay WAN": "Relay WAN",
     "Release Notes": "Примечания к выпуску",