- Load EKS create cluster form as dynamic import dependency.
- Include aws-sdk dependency in package.json

This is the tool that we use to lint the Markdown files.
Let's add it to yarn.lock so that we can use it in
development. Pinned to 0.18.0.

This fixes a regression where an underscore in labels no
longer worked:
https://github.com/knsv/mermaid/releases

Remove the caret from the visual-review-tools
version so that we don't accidentally
introduce bugs on new releases.

This fixes a regression that does not permit spaces in subgraph titles.

Full details: https://github.com/knsv/mermaid/releases

Remove the visual review toolbar code
in favor of using the NPM package.

Signed-off-by: NTakuya Noguchi <takninnovationresearch@gmail.com>