[pages]: update example pages to v2 components

[kennylam]

Update web component examples in all pages to the latest v2 versions.

https://carbon-design-system.github.io/carbon-for-ibm-dotcom-web-components-test/canary/

### Pages
- [ ] https://github.com/carbon-design-system/carbon-for-ibm-dotcom-web-components-test/issues/140
- [ ] https://github.com/carbon-design-system/carbon-for-ibm-dotcom-web-components-test/issues/141
- [ ] https://github.com/carbon-design-system/carbon-for-ibm-dotcom-web-components-test/issues/142
- [ ] https://github.com/carbon-design-system/carbon-for-ibm-dotcom-web-components-test/issues/143
- [ ] https://github.com/carbon-design-system/carbon-for-ibm-dotcom-web-components-test/issues/144