[frontend] Use oozie icon for workflows in the sidebar
<!-- ko case: 'text' --><i class="fa fa-fw fa-i-cursor"></i><!-- /ko -->
<!-- ko case: 'yarn' --><svg class="hi hi-fw"><use xlink:href="#hi-job-designer"></use></svg><!-- /ko -->
<!-- ko case: 'warehouses' --><i class="altus-icon altus-adb-cluster"></i><!-- /ko -->
- <!-- ko case: 'workflows' --><svg class="hi hi-fw"><use xlink:href="#hi-job-designer"></use></svg><!-- /ko -->
+ <!-- ko case: 'workflows' --><svg class="hi hi-fw"><use xlink:href="#hi-oozie"></use></svg><!-- /ko -->
<!-- ko case: $else --><i class="fa fa-fw fa-database"></i><!-- /ko -->
<!-- /ko -->
</script>
