changed backend url and route redirection to work on netlify

made navbar round with css

changed background css

added workout cards to dashboard for current day

added chart with workouts of current day in dashboard

change to workout card

fixed bug with card generation

implements getDateWorkout in frontend and displays card

added test for getDateWorkout api

create route for new api

create rest api to get workouts on certain date

added calender to workout page

fixed login not correctly storing token and fixed addWorkout api call

small name change in addWorkout function

created frontend function to call addWorkout api