[Numeric Input] - Update editor screen to be more organized

[mark-fitzgerald]

Summary:

The editor screen has items in a mixed up order, and some items are "hidden". This PR is intended to organize items in a more logical order, and to unhide settings to make them more discoverable by the content editor.

Issue: LEMS-2455

Test plan:

[github-actions]

Size Change: -266 B (-0.02%)

Total Size: 1.29 MB

Filename	Size	Change
packages/perseus-editor/dist/es/index.js	697 kB	-266 B (-0.04%)

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-linter/dist/es/index.js	22.2 kB
packages/perseus/dist/es/index.js	425 kB
packages/perseus/dist/es/strings.js	3.7 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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[github-actions]

npm Snapshot: Published

Good news!! We've packaged up the latest commit from this PR (accfafb) and published it to npm. You
can install it using the tag PR1951.

Example:

yarn add @khanacademy/perseus@PR1951

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

./dev/tools/bump_perseus_version.sh -t PR1951