fix: [VIZ-4715] Added fix for Vega-Lite duplicated axis issue

[amoghtant-db]

PR Description

The previous version of Vega-Lite resulted in duplicated axis issues when rendering boxplots with multiple axis. This issue was due to there not being a single, unified Y-axis. Examples can be seen below:

This PR fixes this issue while passing all unit tests passed by the main branch.

Examples of the feature fix working are seen below:

Experimented with many cases of multi-Y boxplots to verify proper working correctness.

Checklist

• This PR is atomic (i.e., it fixes one issue at a time).
• The title is a concise semantic commit message (e.g. "fix: correctly handle undefined properties").
• yarn test runs successfully
• For new features:
  • Has unit tests.
  • Has documentation under site/docs/ + examples.

Tips:

• https://medium.com/@greenberg/writing-pull-requests-your-coworkers-might-enjoy-reading-9d0307e93da3 is a nice article about writing a nice PR.
• Use draft PR for work in progress PRs / when you want early feedback (https://github.blog/2019-02-14-introducing-draft-pull-requests/).