Remove unused eslint-config-react-app to eliminate deprecated Babel plugin warnings

[Copilot]

npm install was showing deprecation warnings for @babel/plugin-proposal-private-methods and @babel/plugin-proposal-private-property-in-object. These are transitive dependencies of eslint-config-react-app, which is listed in devDependencies but never actually used—the project uses a custom ESLint config in eslint.config.js.

Changes

• Removed eslint-config-react-app from devDependencies
• Updated package-lock.json to reflect the cleaner dependency tree

The [email protected] warning mentioned in the issue no longer appears after the dependency tree update.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://storage.googleapis.com/chromium-browser-snapshots/Linux_x64/756035/chrome-linux.zip
  • Triggering command: /usr/local/bin/node node install.js (http block)
• unpkg.com
  • Triggering command: /usr/local/bin/node node scripts/postinstall.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

Upgrade these three packages. Ensure that the site builds and runs well.

npm install --legacy-peer-deps
npm warn deprecated @babel/[email protected]: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-methods instead.
npm warn deprecated @babel/[email protected]: This proposal has been merged to the ECMAScript standard and thus this plugin is no longer maintained. Please use @babel/plugin-transform-private-property-in-object instead.
npm warn deprecated [email protected]: Upgrade to fsevents v2 to mitigate potential security issues

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