[MM-58355] Send invalidate cache message across the cluster so that websocket connections on other instances are invalidated correctly (#27204)

* [MM-58355] Send invalidate cache message across the cluster so that websocket connections on other instances are invalidated correctly

* Add suggestion to clear the session cache on the local node as well

* Force read from master DB when gettting channel members for websocket to avoid any DB sync issues

* PR feedback

* Missed generated files

server/channels/app/user.go

@@ -2388,7 +2388,7 @@ func (a *App) GetViewUsersRestrictions(c request.CTX, userID string) (*model.Vie
 		}
 	}
 
-	userChannelMembers, err := a.Srv().Store().Channel().GetAllChannelMembersForUser(userID, true, true)
+	userChannelMembers, err := a.Srv().Store().Channel().GetAllChannelMembersForUser(c, userID, true, true)
 	if err != nil {
 		return nil, model.NewAppError("GetViewUsersRestrictions", "app.channel.get_channels.get.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
 	}