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

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

@@ -128,6 +128,7 @@
     "Error": "Error",
     "External File Versioning": "Versionado externo de fichero",
     "Failed Items": "Elementos fallidos",
+    "Failed to load file versions.": "Failed to load file versions.",
     "Failed to load ignore patterns.": "Fallo al cargar patrones a ignorar",
     "Failed to setup, retrying": "Fallo en la configuración, reintentando",
     "Failure to connect to IPv6 servers is expected if there is no IPv6 connectivity.": "Se espera un fallo al conectar a los servidores IPv6 si no hay conectividad IPv6.",
@@ -373,6 +374,7 @@
     "The rate limit must be a non-negative number (0: no limit)": "El límite de velocidad debe ser un número no negativo (0: sin límite)",
     "The rescan interval must be a non-negative number of seconds.": "El intervalo de actualización debe ser un número positivo de segundos.",
     "There are no devices to share this folder with.": "No hay dispositivos con los cuales compartir esta carpeta.",
+    "There are no file versions to restore.": "There are no file versions to restore.",
     "There are no folders to share with this device.": "No hay carpetas para compartir con este dispositivo.",
     "They are retried automatically and will be synced when the error is resolved.": "Se reintentarán de forma automática y se sincronizarán cuando se resuelva el error.",
     "This Device": "Este Dispositivo",