message: Rephrase message for All Namespaces
diff: @@ -186,8 +186,8 @@ class AppRepoList extends React.Component<IAppRepoListProps> {
  <MessageAlert header="Looking for other app repositories?">
  <div>
  <p className="margin-v-normal">
  - You can view App Repositories across all namespaces by selecting "All Namespaces"
  - above, if you have permission to view App Repositories cluster-wide.
  + Administrators can view App Repositories across all namespaces using the Namespace
  + selector at the top and clicking on "All Namespaces".
  </p>
  <p className="margin-v-normal">
  Kubeapps now enables you to create App Repositories in your own namespace that will
  