resolve docusaurus vulnerabilities using yarn resolutions

[sozercan]

Describe the solution you'd like
similar to project-copacetic/copacetic#27

Anything else you would like to add:
[Miscellaneous information that will assist in solving the issue.]

Environment:

• Eraser version:
• Kubernetes version: (use kubectl version):

[inFocus7]

Could I pick this up?

The vulnerability fix has yet to be backported to v2, so we'll still need to resolve it here as well.

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I'll push up a PR for now, and if we don't want it we can delete it. It's a very quick update/fix, so will be fastest to just have it up by whenever this gets seen lol