Search bar with queries to DATIM API

[jakub-bao]

Create a search bar and do simple mechanism find query to DATIM API

Try to replicate the same behavior like current mechanisms finder:

I think we should try to go without D2 (DHIS2 JS API mapping).
I use it in user-admin-ng and I'm not the most excited about it.
It's easy to do the queries with native fetch

Please try to create independent services for the queries.
I.E. don't put the logic (query + processing) to the same file as the view (component).