feat: add explanation to grade distribution

[Abdomash]

Improve UX by Adding an Explanation to the Grade Distribution Chart

• The Other category in the grade distribution popup is somewhat ambiguous for the users, so I added a simple description underneath the chart to explain its meaning.
• I referenced the official UT Course Grade Distribution to write this explanation. You can find their original explanation in the (?) help popup.

Before

After

_{Huly®: UTRP-321}

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This change is 

[IsaDavRod]

I agree this is needed. In the Figma, there is a link next to the semester dropdown "About the data" that will link (open to new tab) to UT Course Grade Distributions site. Are able to add the link to match the Figma?

FIGMA:

[Abdomash]

How about this?

[DereC4]

bruh why are there four workflows

[IsaDavRod]

How about this?

It would not include the detail info at the bottom.

[Abdomash]

How about this?

It would not include the detail info at the bottom.

I assumed from your prior comment that you liked the description and wanted me to also add the 'about the data' link. But in this case, I removed the description and kept the link. This PR now only adds the 'About the data' link.

[Abdomash]

@IsaDavRod Do I need to do anything else for this pull request?

It says "Changes requested", but I'm not sure if I need to do anything on my part.

[DereC4]

@Abdomash i dont see this PR in the PR channel as a post. Did you ever make it? I can't seem to find it.

[DereC4]

[Abdomash]

I didn't know I needed to add my PR to the Discord channel. Added it now.

[doprz]

LGTM

[IsaDavRod]

Can you change the "About the data" text style/variant to small? Other than that, looks great!

[IsaDavRod]

LGTM