entitlementcard Add POIs to favorites

As a user I want to add pois to favorites to find them easier on the map and store list

Acceptance Criteria:

a store can be added to favorites by clicking favorites cta button on the store detailpage (icon changes to filled)
the store will be marked with a favorite icon on the map instead of the category icon. The icon should have the same size as the other icons
In the ButtomNavigationBar a "Favorite" item should be added that navigates to the favorites page
the favorites page contains a list of acceptance stores the user added to favorites. It should behave like the of the search page. (click on the item -> store detail page)
a favorite store can be removed from favorites on the store detail page by clicking the favorites button (icon changes to outlined)
the favorites will be saved on the device, so they will maintain after the app was closed

Technical Tasks:

add a favorite icon to the mapstyle repository
provide the functionality to add/remove a store to the favorites on the store detail page. save the information on the device
mark the favorites with the favorites icon on the map
add a "favorite" BottomNavigationBar item
add a favorite page that shows store favorites. style similar to the search list

Design:

provide an material icon for the favorites
provide a cta/toggle for the detail page to add the store to favorites
provide a design that includes a new favorite item in the BottomActionBar
provide a design for the favorites pages that should be similar/equal to the SearchList

Some additional info:

To simplify this issue #750 should be done before

Nov 15 '23 16:11 f1sh1918

@f1sh1918 please review: https://www.figma.com/file/SDoGnXIjCCXpE1tAAJkRVc/entitlementcard?type=design&node-id=280%3A445&mode=design&t=wYIZWn6bcdOdFw8W-1