improve: Easier altair installation dataframe panel helper text

[Haleshot]

📝 Summary

Just a small reminder for people to directly install relevant packages in the Manage Package sidebar panel.

🔍 Description of Changes

Changed the text from:

Altair is required to render charts. Install it with `pip install altair`.

to

"Altair is required to render charts. "
"Install it via the Manage packages side panel."

📋 Checklist

• I have read the contributor guidelines.
• For large changes, or changes that affect the public API: this change was discussed or approved through an issue, on Discord, or the community discussions (Please provide a link if applicable).
• I have added tests for the changes made.
• I have run the code and verified that it works as expected.

📜 Reviewers

@akshayka OR @mscolnick

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[mscolnick]

The casing here feels a bit off.

I think ideally we can make the text clickable and it opens the package manager panel

[Haleshot]

The casing here feels a bit off.

I think ideally we can make the text clickable and it opens the package manager panel

Ah ok, you mean hyperlinking the text itself or having the package icon?

[mscolnick]

@Haleshot, hyperlinking the text to switch panels