This PR utilises new API to fetch full bioEntity data and then render it as pins on the map. For the valid UX, changes in the search logic has been made.
What has been done:
fetching chemicals/drugs data via new API, changed the structure
fixed tests for new data structure
added global search input (see !62 (merged) - Important info)
implemented rendering of chemicals/drugs data
added new clear actions on map click (there's identical behavior in the original app)
