Bar Charts with larger scales have wider margins

[KevinWu098]

Description

• this.classData() is set to a new const data so that largeGraphScale can access the array without recalling this.classData()
• Added new const greatestCount to find the largest grade value within data
• Added new const marginX which calculates margins depending on the magnitude of greatestCount, with every magnitude above 100 increasing the base margin (30) by 5. For example, 5173 would set marginX to 35, while 123 would set it to 30.

More detailed documentation is in code comments!

Screenshots

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After:

Steps to verify/test this change:

• Verify changes work as expected on staging instance

Final Checks:

• Verify successful deployment
• Delete branch

Closes #296

[KevinWu098]

After reviewing the code a bit, I realized that only checking for four digit number would kick the can down the road for five digits etc.

TLDR Wrote some new code to find the largest grade count, then increase the margin size based on the magnitude of that largest count.

[github-actions]

Deployed staging instance to https://staging-331.peterportal.org

[js0mmer]

LGTM