remove additional loading spinners and removing master from docker compose (#243)

Signed-off-by: Amit Galitzky <amgalitz@amazon.com>

Author: amitgalitz

.github/configurations/docker-compose.yml

@@ -7,7 +7,7 @@ services:
       - cluster.name=opensearch-cluster
       - node.name=opensearch-node1
       - discovery.seed_hosts=opensearch-node1
-      - cluster.initial_master_nodes=opensearch-node1
+      - cluster.initial_cluster_manager_nodes=opensearch-node1
       - bootstrap.memory_lock=true # along with the memlock settings below, disables swapping
       - 'ES_JAVA_OPTS=-Xms512m -Xmx512m' # minimum and maximum Java heap size, recommend setting both to 50% of system RAM
     ulimits:

public/pages/DetectorDetail/containers/DetectorDetail.tsx

@@ -429,12 +429,6 @@ export const DetectorDetail = (props: DetectorDetailProps) => {
         </EuiFlexGroup>
       ) : (
         <div>
-          <EuiLoadingSpinner size="s" />
-          &nbsp;&nbsp;
-          <EuiLoadingSpinner size="m" />
-          &nbsp;&nbsp;
-          <EuiLoadingSpinner size="l" />
-          &nbsp;&nbsp;
           <EuiLoadingSpinner size="xl" />
         </div>
       )}