Combine uui-symbol-file and uui-symbol-folder components

[bjarnef]

I noticed we have these two components:
https://uui.umbraco.com/?path=/docs/uui-symbol-folder--docs
https://uui.umbraco.com/?path=/docs/uui-symbol-file--docs

Wouldn't it make sense to combine into a single component?

E.g. something similar to "asset" component like this:
https://f36.contentful.com/components/asset
https://f36-storybook.contentful.com/?path=/story/components-asset--basic&args=status:archived

Only difference is that document/folder icon is rendered and that file has type probably, which is basically just any string value.

Perhaps making it simplify to render when looping items.

<uui-symbol-asset type="{this.isFolder ? 'folder' : 'file' }" extension="pdf"></uui-symbol-asset>