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

gui/default/assets/lang/lang-zh-CN.json

@@ -282,7 +282,6 @@
     "Preview": "预览",
     "Preview Usage Report": "预览使用报告",
     "QR code": "二维码",
-    "QUIC": "QUIC",
     "QUIC LAN": "QUIC LAN",
     "QUIC WAN": "QUIC WAN",
     "QUIC connections are in most cases considered suboptimal": "QUIC 连接在多数情况下是次优的选择",
@@ -293,7 +292,6 @@
     "Received data is already encrypted": "已加密接收到的数据",
     "Recent Changes": "最近更改",
     "Reduced by ignore patterns": "已由忽略模式缩减",
-    "Relay": "中继",
     "Relay LAN": "Relay LAN",
     "Relay WAN": "Relay WAN",
     "Release Notes": "发布说明",