Pagination and filtering

[Pavanct]

• [ ] openmensa api gives data only for 50 canteens, if you use page parameter it gives you data for next 50 and so on. So use pagination to call api and use page number as parameter (https://material.angular.io/components/paginator/overview)
• [ ] use filter component from data table to filter data by city, mensa name
• [ ] use sort header to sort data table by mensa name, city etc. ( https://material.angular.io/components/sort/overview )