Enable aphrodite-add-style-variable-name rule in eslint-plugin-khan demo project

[beaesguerra]

Summary:

Now that the eslint-plugin-khan package is released with the new aphrodite-add-style-variable-name rule, we can update the demo project to test that the rule works as expected

Issue: FEI-5952

Test plan:

Linting error

• Run yarn lint in packages/eslint-plugin-khan/demo
• Notice there is an error for the aphrodite-add-style-variable-name rule

Hints in vs code

• Open packages/eslint-plugin-khan/demo in vs code (the demo project needs to be opened separately)
• Open the foo.tsx file
• Notice the linting error on the variable name when using addStyle

[changeset-bot]

🦋 Changeset detected

Latest commit: e4bc789

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

This PR includes changesets to release 0 packages

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.85%. Comparing base (8f4b545) to head (e4bc789).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1095   +/-   ##
=======================================
  Coverage   99.85%   99.85%           
=======================================
  Files          97       97           
  Lines        1392     1392           
  Branches      351      358    +7     
=======================================
  Hits         1390     1390           
  Misses          1        1           
  Partials        1        1           

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[github-actions]

Size Change: 0 B

Total Size: 4.63 kB

ℹ️ View Unchanged

Filename	Size
packages/wonder-stuff-core/dist/browser/es/index.js	1.85 kB
packages/wonder-stuff-sentry/dist/browser/es/index.js	1.65 kB
packages/wonder-stuff-testing/dist/browser/es/index.js	1.12 kB

_{compressed-size-action}

[beaesguerra]

I noticed the error message could be improved, I'll land that update first and release that before setting this for review! #1096

[khan-actions-bot]

Gerald

Required Reviewers

• @Khan/frontend-infra for changes to .changeset/plenty-bats-flow.md, packages/eslint-plugin-khan/demo/.eslintrc.js, packages/eslint-plugin-khan/demo/package.json, packages/eslint-plugin-khan/demo/yarn.lock

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[kevinb-khan]

LGTM 🚢