Update menu title font size based on whether or not it's clickable

[khuddite]

Fixes #8350

1. Summary
   https://www.figma.com/design/xt8O9mFeLl46C5InWwoMrN/Twenty?node-id=36424-125120&node-type=instance&t=psxuagFLo1Cu26Vz-0

   Based on Figma, the menu header should have base/medium instead of small/medium when it's not clickable or dropdown. However, for dropdowns, we should keep it as small/medium. Menu items should stay as base/regular.

2. Solution
   Utilized onClick prop to decide the font size of the menu header. That way, Dropdowns stay as base/small while non-clickable headers are updated to base/medium

3. Screenshots
   please check out font size and weight for each case

header:

menu item:

dropdown:

[greptile-apps]

PR Summary

This PR modifies the DropdownMenuHeader component to adjust font sizes based on clickability, implementing different sizes for clickable dropdowns versus static headers according to Figma designs.

• Bug: StartIcon variant in packages/twenty-front/src/modules/ui/layout/dropdown/components/DropdownMenuHeader.tsx doesn't pass onClick to StyledHeader, causing incorrect font sizing
• Font size logic in StyledHeader uses onClick prop to determine size: small (theme.font.size.sm) for clickable headers, medium (theme.font.size.md) for non-clickable ones
• Added hover background effect only for clickable headers using onClick prop in StyledHeader component

_{1 file(s) reviewed, no comment(s)
Edit PR Review Bot Settings | Greptile}

[github-actions]

	Fails
🚫	node failed.

Log

�[31mError: �[39m RequestError [HttpError]: You have exceeded a secondary rate limit. Please wait a few minutes before you try again. If you reach out to GitHub Support for help, please include the request ID 4C37:2685BE:23D826:466887:672B6A92.
    at /home/runner/work/twenty/twenty/node_modules/�[4m@octokit�[24m/request/dist-node/index.js:86:21
�[90m    at process.processTicksAndRejections (node:internal/process/task_queues:95:5)�[39m {
  status: �[33m403�[39m,
  response: {
    url: �[32m'https://api.github.com/search/issues?q=is%3Apr%20author%3Akhuddite%20is%3Aclosed%20repo%3Atwentyhq%2Ftwenty&per_page=2&page=1'�[39m,
    status: �[33m403�[39m,
    headers: {
      �[32m'access-control-allow-origin'�[39m: �[32m'*'�[39m,
      �[32m'access-control-expose-headers'�[39m: �[32m'ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Used, X-RateLimit-Resource, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type, X-GitHub-SSO, X-GitHub-Request-Id, Deprecation, Sunset'�[39m,
      connection: �[32m'close'�[39m,
      �[32m'content-encoding'�[39m: �[32m'gzip'�[39m,
      �[32m'content-security-policy'�[39m: �[32m"default-src 'none'"�[39m,
      �[32m'content-type'�[39m: �[32m'application/json; charset=utf-8'�[39m,
      date: �[32m'Wed, 06 Nov 2024 13:09:38 GMT'�[39m,
      �[32m'referrer-policy'�[39m: �[32m'origin-when-cross-origin, strict-origin-when-cross-origin'�[39m,
      server: �[32m'github.com'�[39m,
      �[32m'strict-transport-security'�[39m: �[32m'max-age=31536000; includeSubdomains; preload'�[39m,
      �[32m'transfer-encoding'�[39m: �[32m'chunked'�[39m,
      vary: �[32m'Accept-Encoding, Accept, X-Requested-With'�[39m,
      �[32m'x-content-type-options'�[39m: �[32m'nosniff'�[39m,
      �[32m'x-frame-options'�[39m: �[32m'deny'�[39m,
      �[32m'x-github-api-version-selected'�[39m: �[32m'2022-11-28'�[39m,
      �[32m'x-github-media-type'�[39m: �[32m'github.v3; format=json'�[39m,
      �[32m'x-github-request-id'�[39m: �[32m'4C37:2685BE:23D826:466887:672B6A92'�[39m,
      �[32m'x-ratelimit-limit'�[39m: �[32m'30'�[39m,
      �[32m'x-ratelimit-remaining'�[39m: �[32m'30'�[39m,
      �[32m'x-ratelimit-reset'�[39m: �[32m'1730898638'�[39m,
      �[32m'x-ratelimit-resource'�[39m: �[32m'search'�[39m,
      �[32m'x-ratelimit-used'�[39m: �[32m'1'�[39m,
      �[32m'x-xss-protection'�[39m: �[32m'0'�[39m
    },
    data: {
      documentation_url: �[32m'https://docs.github.com/free-pro-team@latest/rest/overview/rate-limits-for-the-rest-api#about-secondary-rate-limits'�[39m,
      message: �[32m'You have exceeded a secondary rate limit. Please wait a few minutes before you try again. If you reach out to GitHub Support for help, please include the request ID 4C37:2685BE:23D826:466887:672B6A92.'�[39m
    }
  },
  request: {
    method: �[32m'GET'�[39m,
    url: �[32m'https://api.github.com/search/issues?q=is%3Apr%20author%3Akhuddite%20is%3Aclosed%20repo%3Atwentyhq%2Ftwenty&per_page=2&page=1'�[39m,
    headers: {
      accept: �[32m'application/vnd.github.v3+json'�[39m,
      �[32m'user-agent'�[39m: �[32m'octokit-rest.js/18.12.0 octokit-core.js/3.6.0 Node.js/18.20.4 (linux; x64)'�[39m,
      authorization: �[32m'token [REDACTED]'�[39m
    },
    request: { hook: �[36m[Function: bound bound register]�[39m }
  }
}
danger-results://tmp/danger-results-0ad3beb7.json

Generated by 🚫 dangerJS against c2a9d0b