fix: import paths for JS projects and circular dependency issue in RdsHostListProvider (#546)

Author: karenc-bq

.babelrc

@@ -1,7 +1,10 @@
 {
   "plugins": [
     ["babel-plugin-transform-rewrite-imports", {
-      "appendExtension": ".js"
+      "appendExtension": ".js",
+      "replaceExtensions": {
+        "(.+?)/common/lib$": "$1/common/lib/index"
+      }
     }]
   ]
 }

common/lib/host_list_provider/rds_host_list_provider.ts

@@ -21,7 +21,7 @@ import { RdsUrlType } from "../utils/rds_url_type";
 import { RdsUtils } from "../utils/rds_utils";
 import { HostListProviderService } from "../host_list_provider_service";
 import { ConnectionUrlParser } from "../utils/connection_url_parser";
-import { AwsWrapperError } from "../";
+import { AwsWrapperError } from "../utils/errors";
 import { Messages } from "../utils/messages";
 import { WrapperProperties } from "../wrapper_property";
 import { logger } from "../../logutils";