Feature: replace div with a tag

[LinYunWen]

Replace div tag with a tag on the tree item. If it is directory, prevent the default action of a tag.

Because of using anchor tags, users can open the file in a new tab by context menu or clicking the middle button on mouses.

[tavyandy97]

Hey @LinYunWen ! This use case can be incorporated in the extension and will be useful to users. I'll review your pull request and let you know if any changes are required. Thanks for the contribution!

[liechtir]

Hi Andy could you please merge that one? Seems like a neat functionaly. However, this most likely conflicts with my pull request a tiny bit.

[tavyandy97]

Hey @liechtir , thanks for bumping this up. I'll definitely look into it.