Remove Main component from '@redhat-cloud-services/frontend-components/Main' . Instead of using <Main></Main> component use <section page-type class="pf-l-page_main-section pf-c-page_main-section"></section>. UI look should remain the same. 

Following files contains this component:

src/Containers/JobExplorer/JobExplorer.js

src/Containers/Clusters/Clusters.js

src/Containers/OrganizationStatistics/OrganizationStatistics.js

src/Containers/SavingsPlanner/Details/Details.js

src/Containers/SavingsPlanner/Add/index.js

src/Containers/SavingsPlanner/List/List.js

src/Containers/Notifications/Notifications.tsx

src/Containers/Reports/Details/index.tsx

src/Containers/Reports/List/List.tsx