[IMP]Improve Week and day mode, allowed pager for week in week mode(next week, previous week and this week), copy data will now copy last submitted timesheet's data, week and day mode will not have delete button, when delete button is clicked in day mode it will delete that day's particular account's all lines, in week mode it will delete particular account's all lines, removed some commented code, day and week mode now support change of account many2one, if one by mistake selected wrong account then he/she can change account also by clicking edit icon near to account name, as we are displaying data per week(batch of week) in week mode so total columns will show total of week per account, cell Total will have super total of whole timesheet