fix(timesheet): Hours automatically used to set 0
fix(timesheet): Hours automatically used to set 0

- Case: If the company had standard working hour set
and when the user creates a timesheet with same date for
"To" and "From" then the hours field automatically used to
get reset to 0 after saving the form.

gsnbng/erpnext,gsnbng/erpnext,gsnbng/erpnext,gsnbng/erpnext