Fix: Open unlimited polygon does not restrict crossing sides.

[catandthemachines]

Summary:

For keyboard users if they're drowing a polygon and it places a point at 0,0. There are cases where it could cross the sides of the polygon they are actively creating and cause the polygon to break. Mouse uses can get around this a bit. But it's not idea.

This fix checks whether the polygon type allows intersecting sides and disables the rejection logic.

Issue: LEMS-2618

Test plan:

Go to /?path=/story/perseus-widgets-interactive-graph--unlimited-polygon-with-mafs in Storybook.
Use your keyboard to add points.
Move a few points in a way that a new point would cause the sides to intersect.
Add a new point and make sure you can still move points on the polygon.

[khan-actions-bot]

Gerald

Required Reviewers

• @Khan/perseus for changes to .changeset/chilled-pianos-cheat.md, packages/perseus/src/widgets/interactive-graphs/mafs-graph.tsx, packages/perseus/src/widgets/interactive-graphs/reducer/interactive-graph-reducer.test.ts, packages/perseus/src/widgets/interactive-graphs/reducer/interactive-graph-reducer.ts

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[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (5831675) and published it to npm. You
can install it using the tag PR1896.

Example:

yarn add @khanacademy/perseus@PR1896

If you are working in Khan Academy's webapp, you can run:

./dev/tools/bump_perseus_version.sh -t PR1896

[github-actions]

Size Change: +134 B (+0.01%)

Total Size: 1.29 MB

Filename	Size	Change
packages/perseus/dist/es/index.js	425 kB	+134 B (+0.03%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	39 kB
packages/keypad-context/dist/es/index.js	760 B
packages/kmath/dist/es/index.js	4.27 kB
packages/math-input/dist/es/index.js	77.9 kB
packages/math-input/dist/es/strings.js	1.79 kB
packages/perseus-core/dist/es/index.js	1.48 kB
packages/perseus-editor/dist/es/index.js	698 kB
packages/perseus-linter/dist/es/index.js	22.2 kB
packages/perseus/dist/es/strings.js	3.57 kB
packages/pure-markdown/dist/es/index.js	3.66 kB
packages/simple-markdown/dist/es/index.js	12.5 kB

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