[WIP] feat(daffio): add sidebar mode switching to docs

[damienwebdev]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/graycoreio/daffodil/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[x] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

What is the current behavior?

Currently, we don't show the sidebar on the docs.

Touches: #336

What is the new behavior?

We will now show the sidebar in side mode.

Does this PR introduce a breaking change?

[x] Yes
[ ] No

This breaks the states outlined in the DaffSidebarAnimationStates. It also position:absolute's the side mode. These are potentially UI breaking. If you use these states, you'll need to refactor to the new states.