Feature/mirror (#1683)

Add mirror command and extension points.

Co-authored-by: René Pfeuffer <rene.pfeuffer@cloudogu.com>
Co-authored-by: Sebastian Sdorra <sebastian.sdorra@cloudogu.com>
Co-authored-by: Konstantin Schaper <konstantin.schaper@cloudogu.com>

scm-ui/ui-components/src/OverviewPageActions.tsx

@@ -74,7 +74,7 @@ const OverviewPageActions: FC<Props> = ({
     if (showCreateButton) {
       return (
         <div className={classNames("input-button", "control", "column")}>
-          <Button label={label} link={createLink || `${link}create`} color="primary" />
+          <Button label={label} link={createLink || `${link}create/`} color="primary" />
         </div>
       );
     }