feat(cxl-ui): add cxl-button

[anoblet]

https://app.clickup.com/t/86aycmkx7

[github-actions[bot]]

size-limit report 📦

Path	Size
packages/cxl-ui/pkg/dist-web/cxl-ui.js	64.04 KB (0%)
packages/cxl-ui/pkg/dist-web/cxl-ui-jwplayer.js	11.87 KB (0%)
packages/cxl-ui/pkg/dist-web/cxl-ui-playbooks.js	27.69 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	240.33 KB (0%)

[anoblet]

Task linked: CU-86aycmkx7 Aybolit: make buttons open pages in new tab

[lkraav]

AFAIK links should also implement cursor: pointer CSS?

https://developer.mozilla.org/en-US/docs/Web/CSS/cursor