chore: remove unused frontend dependencies and fix build

[zinodict121]

Pull Request: Audit and Remove Unused Frontend Dependencies

Fixes #187

Description

This PR addresses issue #187 by auditing the frontend project and removing unused dependencies to help reduce bloat, optimize the workspace, and keep our lockfiles clean. It also includes a few minor syntax, type, and linting fixes that were discovered while ensuring a clean build.

Changes Made

• Removed Unused Dependencies:

  • Uninstalled @axe-core/playwright and fast-check which were flagged by depcheck as unused.
  • Automatically regenerated package.json and package-lock.json.

• Fixed Pre-existing Build/Lint Errors:

  • Syntax Error: Fixed Nullish coalescing operator(??) requires parens error in src/components/governance/ProposalCreator.tsx.
  • Type Error: Removed an invalid canceled case from the switch statement handling ProposalStatus in src/components/governance/ProposalCard.tsx.
  • Lint Error: Added a necessary @typescript-eslint/no-explicit-any disable comment for an intentional type cast in src/__tests__/hexDecoder.test.ts.

Testing Instructions

1. Checkout the branch remove-unused-dependencies.
2. Run npm install to ensure your node_modules are synced with the updated package-lock.json.
3. Run npm run build — the build should complete successfully without any Turbopack or TypeScript errors.
4. Run npm run lint — the linter should pass without the Unexpected any error.

Checklist

• Audited dependencies using depcheck
• Unused dependencies successfully removed
• npm run build completes successfully
• npm run lint completes successfully
• Tested locally