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

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

@@ -283,6 +283,8 @@
     "Preview Usage Report": "Predogled poročila uporabe",
     "QR code": "QR code",
     "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",
     "Quick guide to supported patterns": "Hitri vodnik za podprte vzorce",
     "Random": "Naključno",
@@ -292,6 +294,8 @@
     "Recent Changes": "Nedavne spremembe",
     "Reduced by ignore patterns": "Zmanjšano z ignoriranjem vzorcev",
     "Relay": "Relay",
+    "Relay LAN": "Relay LAN",
+    "Relay WAN": "Relay WAN",
     "Release Notes": "Opombe ob izdaji",
     "Release candidates contain the latest features and fixes. They are similar to the traditional bi-weekly Syncthing releases.": "Kandidati za izdajo vsebujejo najnovejše funkcije in popravke. Podobne so tradicionalnim dvotedenskim izdajam Syncthing.",
     "Remote Devices": "Oddaljene naprave",