add optional answerarea to article

[anakaren-rojas]

Summary:

[article-extras] article editor updates

Issue: LEMS-XXXX

Test plan:

[github-actions]

Size Change: +72 B (+0.01%)

Total Size: 518 kB

📦 View Changed

Filename	Size	Change
packages/perseus-core/dist/es/index.item-splitting.js	13 kB	+47 B (+0.36%)
packages/perseus-core/dist/es/index.js	27.6 kB	-44 B (-0.16%)
packages/perseus-editor/dist/es/index.js	104 kB	+46 B (+0.04%)
packages/perseus/dist/es/index.js	204 kB	+23 B (+0.01%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	20.6 kB
packages/keypad-context/dist/es/index.js	1 kB
packages/kmath/dist/es/index.js	6.31 kB
packages/math-input/dist/es/index.js	98.5 kB
packages/math-input/dist/es/strings.js	1.61 kB
packages/perseus-linter/dist/es/index.js	9.79 kB
packages/perseus-score/dist/es/index.js	9.86 kB
packages/perseus-utils/dist/es/index.js	403 B
packages/perseus/dist/es/strings.js	12.4 kB
packages/pure-markdown/dist/es/index.js	1.39 kB
packages/simple-markdown/dist/es/index.js	6.71 kB

_{compressed-size-action}

[anakaren-rojas]

/snapshot

[anakaren-rojas]

/snapshot

[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (cfd3177) and published it to npm. You
can install it using the tag PR3868.

Example:

pnpm add @khanacademy/perseus@PR3868

If you are working in Khan Academy's frontend, you can run the below command.

./dev/tools/bump_perseus_version.ts -t PR3868

If you are working in Khan Academy's webapp, you can run the below command.

./dev/tools/bump_perseus_version.js -t PR3868