refactor: parameterize configureApp function (inject db list)

Reason: easier testing (mocking) and better readability

Note: did additional refactoring

src/cli.ts

@@ -17,6 +17,7 @@ import {Logger} from '@openstapps/logger';
 import express from 'express';
 import http from 'http';
 import {configureApp} from './app';
+import {Elasticsearch} from './storage/elasticsearch/elasticsearch';
 
 const app = express();
 
@@ -95,7 +96,7 @@ function onListening() {
   Logger.ok(`Listening on ${bind}`);
 }
 
-configureApp(app)
+configureApp(app, {elasticsearch: Elasticsearch})
   .then(() => {
     Logger.ok('Successfully configured express server');
     // After app setup listen on provided port, on all network interfaces