Mark the favorites with the favorites icon on the map

[seluianova]

Is your feature request related to a problem? Please describe.
This task is a follow up to Add POIs to favorites

• new favorite icon should be added to the mapstyle repository
• the store should be marked with a favorite icon on the map instead of the category icon

Describe the solution you'd like
The implementation idea that was discussed:
We could probably render an icon over the symbol layer, similarly to how we (client side) display the enlarged icons when a store is selected on the map.

Describe alternatives you've considered
Implement Set Map Layers dynamically first?

Additional context
Design:
https://www.figma.com/file/SDoGnXIjCCXpE1tAAJkRVc/entitlementcard?type=design&node-id=280%3A445&mode=design&t=wYIZWn6bcdOdFw8W-1