hassgraph: add option to show/hide historical values

[jgog]

Adds the options for apps/hassgraph/hass_graph.star to hide the historical values on the right

[tidbyt[bot]]

⚠️ The automated review process is experimental and likely has bugs. Please bear with us as we iron out the kinks and enable you to ship changes at high velocity 🚀

Next Steps

Hello! Thank you so much for your change 🤜 🤛 . There are a few things you need to do:

• [ ] Sign the CLA if you haven't already
• [ ] Ensure your build is green! Any problem will display a proposed solution to try out
• [ ] Get a review, either by Tidbyt Bot or by a Tidbyt engineer

  Manual Review Required

  Hang tight! A Tidbyt engineer will be by shortly to review your change. Here is what they will be looking for:		Test	Details
  ✅	App Dir	All files are in a single app directory
  🟡	Modules	Usage of animation.star requires review
  🟡	Original Author	The original author (vincentezw) does not match the PR author (jgog)

[tidbyt-bot]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[jgog]

I have read the CLA Document and I hereby sign the CLA

[jgog]

recheck

[matslina]

@vincentezw PTAL

[vincentezw]

@vincentezw PTAL

thanks for the heads up. Looks great, thanks for adding this @jgog, probably should have been an option from the start 😄