OHIF-333: Split Button (#1988)

* ohif-333: add component foundation

* ohif-333: add expandable content and mocked data

* ohif-333: improve ListMenu component for the new toolbar button and add radio behavior

* ohif-333: add click outside behavior and update primary and secondary props

* ohif-333: separate classes from markup

* ohif-333: fix layout issues

* ohif-333: extract window level component

* ohif-333: update component returns

* ohif-333: update chevron thickness

* ohif-333: remove is active prop

* Delete lerna-debug.log

* ohif-333: clean toolbar and use example in ui package

* ohif-333: update styles to avoid word break

* ohif-333: fix ui package build

Co-authored-by: Erik Ziegler <erik.sweed@gmail.com>
Co-authored-by: Danny Brown <danny.ri.brown@gmail.com>

extensions/default/src/ViewerLayout/index.jsx

@@ -101,10 +101,10 @@ function ToolbarSecondary({ servicesManager }) {
     if (
       btn.props &&
       btn.props.commands &&
-      evt.value &&
-      btn.props.commands[evt.value]
+      evt.item && evt.item.value &&
+      btn.props.commands[evt.item.value]
     ) {
-      const { commandName, commandOptions } = btn.props.commands[evt.value];
+      const { commandName, commandOptions } = btn.props.commands[evt.item.value];
       commandsManager.runCommand(commandName, commandOptions);
     }
   };