Allow analytics query to be sent to the right API Umbrella proxy

[bajiat]

When selecting API from the Select API list, the analytics query needs to be sent to the correct proxy (= the one connected to the selected API).

Definition of done

• Analytics query is made to the correct proxy path.

Consider whether the query should be made to ElasticSearch or API Umbrella Admin API. The latter is more secure and more future proof.

[bajiat]

@marla-singer Can we assign this to you? If yes, what would be your estimate?

[marla-singer]

@bajiat sure, assign it to me. Estimate about 5 days and I can continue a work after merge of related task #1923