Make you are here points on marginal tax rate charts a point instead of a line

[patrickhanl]

MTR plot with no reform

MTR baseline and reform

MTR delta

Also MTR component was using some fuzzy logic to get the reform MTR value, I updated that to use the householdReform prop the same way the baseline MTR value was assigned.

resolves #663

🤖 Generated by Copilot at abbef1a

Summary

📊🛠️🧪

This pull request adds a new feature to the policy engine app that allows users to compare the marginal tax rates of a household under different policies. It updates the MarginalTaxRates component to show the reform policy output and scatter plots, and adds a test file MarginalTaxRates.test.js to verify the component's functionality.

We plot the curves of doom and despair
We mock the Plotly and the useSearchParams
We show the output and the rates of the reform
We scatter the points of the MarginalTaxRates

Walkthrough

• Add a new prop to the MarginalTaxRates component to compare baseline and reform policies (link)
• Simplify the logic for getting the reform marginal tax rate value using the getValueFromHousehold function (link)
• Change the lines that mark the current earnings and marginal tax rates to scatter plots with single markers for better visibility (link, link, link)
• Update the comment to reflect the change of plot type (link)
• Add a new test file for the MarginalTaxRates component in src/__tests__/MarginalTaxRates.test.js (link)

[MaxGhenis]

Thanks! Could you link the issue and resolve the merge conflicts?