fix(e2e): modify operator e2e tests to add the fab config

Author: debsmita1

.ibm/pipelines/resources/rhdh-operator/rhdh-start.yaml

@@ -9,6 +9,7 @@ spec:
       configMaps:
         - name: app-config-rhdh
         - name: dynamic-homepage-and-sidebar-config
+        - name: dynamic-global-floating-action-button-config
       mountPath: /opt/app-root/src
     dynamicPluginsConfigMapName: dynamic-plugins
     extraEnvs: