[Locked Figures Aria] Use TextArea instead of TextField

[nishasy]

Summary:

Replace LabeledTextField with TextArea in locked-figures-aria-tsx
so that multiline aria labels are easier to work with.

Issue: none

Test plan:

yarn jest

Storybook

• http://localhost:6006/?path=/story/perseuseditor-widgets-interactive-graph--mafs-with-locked-figure-labels-all-flags
• All the locked figure types should have updated aria label fields.

Before	After

[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (46a5888) and published it to npm. You
can install it using the tag PR1706.

Example:

yarn add @khanacademy/perseus@PR1706

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

./dev/tools/bump_perseus_version.sh -t PR1706

[github-actions]

Size Change: +47 B (+0.01%)

Total Size: 864 kB

Filename	Size	Change
packages/perseus-editor/dist/es/index.js	280 kB	+47 B (+0.02%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	38.3 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	78 kB
packages/math-input/dist/es/strings.js	1.79 kB
packages/perseus-core/dist/es/index.js	1.48 kB
packages/perseus-linter/dist/es/index.js	22.2 kB
packages/perseus/dist/es/index.js	418 kB
packages/perseus/dist/es/strings.js	3.4 kB
packages/pure-markdown/dist/es/index.js	3.66 kB
packages/simple-markdown/dist/es/index.js	12.4 kB

_{compressed-size-action}

[khan-actions-bot]

Gerald

Required Reviewers

• @Khan/perseus for changes to .changeset/brown-dancers-attend.md, packages/perseus-editor/src/widgets/interactive-graph-editor/locked-figures/locked-figure-aria.test.tsx, packages/perseus-editor/src/widgets/interactive-graph-editor/locked-figures/locked-figure-aria.tsx

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