[NEW] Update Checker Description (#19892)

app/version-check/server/addSettings.js

@@ -13,6 +13,7 @@ settings.addGroup('General', function() {
 				_id: 'Register_Server',
 				value: true,
 			},
+			i18nDescription: 'Update_EnableChecker_Description',
 		});
 	});
 });

packages/rocketchat-i18n/i18n/en.i18n.json

@@ -3809,6 +3809,7 @@
   "Unstar_Message": "Remove Star",
   "Update": "Update",
   "Update_EnableChecker": "Enable the Update Checker",
+  "Update_EnableChecker_Description": "Checks automatically for new updates / important messages from the Rocket.Chat developers and receives notifications when available. The notification appears once per new version as a clickable banner and as a message from the Rocket.Cat bot, both visible only for administrators.",
   "Update_every": "Update every",
   "Update_LatestAvailableVersion": "Update Latest Available Version",
   "Update_to_version": "Update to __version__",