feat(link): add `icon-placement` option

[emyarod]

Related Ticket(s)

https://github.com/carbon-design-system/carbon-for-ibm-dotcom/issues/8836

Description

This PR adds support for icon-placement in the link component to potentially deprecate the link-with-icon dotcom component

[ibmdotcom-bot]

Deploy preview created for Carbon Web Components: https://carbon-web-components.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/1009/index.html

Built with commit: e7d8b6a047f44e6981a61f09516c023f1a99c2c4

[ibmdotcom-bot]

Deploy preview created for Carbon Web Components - Vue: https://carbon-web-components-vue.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/1009/index.html

Built with commit: e7d8b6a047f44e6981a61f09516c023f1a99c2c4

[ibmdotcom-bot]

Deploy preview created for Carbon Web Components - React: https://carbon-web-components-react.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/1009/index.html

Built with commit: e7d8b6a047f44e6981a61f09516c023f1a99c2c4

[ibmdotcom-bot]

Deploy preview created for Carbon Web Components - Angular: https://carbon-web-components-angular.s3.us-east.cloud-object-storage.appdomain.cloud/deploy-previews/1009/index.html

Built with commit: e7d8b6a047f44e6981a61f09516c023f1a99c2c4

[RichKummer]

Agree with @ariellalgilmore on the knob update! I noticed that there seems to be some extra padding on the left when the icon is positioned on the left:

Positioned right

Positioned left

Not sure if this would cause downstream effects. Also Percy's picking up 72 differences, but it looks like these may just be new pages or Percy's creating this for the first time. Figured I would flag just in case:

[emyarod]

@ariellalgilmore @RichKummer the knob should be on the Paired with icon story only now! also fixed the extra spacing when the icon is placed on the left side. and for the Percy changes, it looks like the snapshots are all brand new