fix(cxl-ui): context-menu does not close on outside click

[freudFlintstone]

Fixes lesson action bar vaadin-context-menu not closing on outside click

related: https://github.com/conversionxl/cxl-wpstarter/pull/264

[github-actions]

size-limit report 📦

Path	Size
packages/cxl-ui/pkg/dist-web/cxl-ui.js	65.15 KB (+0.04% 🔺)
packages/cxl-ui/pkg/dist-web/cxl-ui-jwplayer.js	11.87 KB (0%)
packages/cxl-ui/pkg/dist-web/cxl-ui-playbooks.js	27.76 KB (0%)
packages/cxl-ui/pkg/dist-web/vendor.js	135.58 KB (0%)
packages/cxl-ui/pkg/dist-web/cxl-ui-jwplayer.js, packages/cxl-ui/pkg/dist-web/cxl-ui-playbooks.js, packages/cxl-ui/pkg/dist-web/cxl-ui.js, packages/cxl-ui/pkg/dist-web/manifest.js, packages/cxl-ui/pkg/dist-web/unresolved.js, packages/cxl-ui/pkg/dist-web/vendor.js	241.51 KB (+0.01% 🔺)