removing cached css
fix the styling for the head admin login
hiding button instead of form
bug fix on deleting employee
flash message bug fix
created more validations for shift creation

restricting to only one shift typer per day, one lunch or one dinner.
redirecting to calendar view after deleting shift
after editing or deleting shift, redirect /calend
calendar styling for mobile
fixing the admin-create view
making it mobile responsive
centering login