Replace all ChatSubscriptions.find and update

packages/rocketchat-lib/server/models/Subscriptions.coffee

server/methods/archiveRoom.coffee

server/methods/deleteUser.coffee

server/methods/hideRoom.coffee

server/methods/leaveRoom.coffee

server/methods/openRoom.coffee

server/methods/readMessages.coffee

server/methods/saveRoomName.coffee

server/methods/toogleFavorite.coffee

server/methods/unarchiveRoom.coffee

server/publications/subscription.coffee

server/publications/userChannels.coffee

server/startup/migrations/v3.coffee

server/startup/migrations/v4.coffee

server/startup/migrations/v5.coffee

server/startup/migrations/v6.coffee