Revert image editor change, Graphie

[nixterrimus]

Summary:

Revert "Fix: Image widget editor fails to calculate image dimensions (#618)"

Issue: XXX-XXXX

Test plan:

[changeset-bot]

🦋 Changeset detected

Latest commit: 6c44662

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@khanacademy/perseus-editor	Minor

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Click here if you're a maintainer who wants to add another changeset to this PR

[khan-actions-bot]

Gerald

Required Reviewers

• @Khan/perseus for changes to .changeset/slow-sloths-build.md, packages/perseus/src/util.ts, packages/perseus-editor/src/widgets/image-editor.tsx

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[github-actions]

Size Change: -179 B (0%)

Total Size: 824 kB

Filename	Size	Change
packages/perseus-editor/dist/es/index.js	268 kB	-70 B (0%)
packages/perseus/dist/es/index.js	397 kB	-109 B (0%)

ℹ️ View Unchanged

Filename	Size
packages/kas/dist/es/index.js	38 kB
packages/kmath/dist/es/index.js	4.13 kB
packages/math-input/dist/es/index.js	79.3 kB
packages/perseus-core/dist/es/index.js	55 B
packages/perseus-error/dist/es/index.js	705 B
packages/perseus-linter/dist/es/index.js	21.2 kB
packages/pure-markdown/dist/es/index.js	3.65 kB
packages/simple-markdown/dist/es/index.js	12.6 kB

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[github-actions]

npm Snapshot: Published

🎉 Good news!! We've packaged up the latest commit from this PR (f4a8c41) and published it to npm. You
can install it using the tag PR646.

Example:

yarn add @khanacademy/perseus@PR646

[coveralls]

coverage: 68.993% (+0.02%) from 68.978% when pulling 6c44662 on new/revert-editor-change into 6939f12 on main.