Updated Twitter Icon to X

[lalitkumawat1m]

Please describe the changes this PR makes and why it should be merged:
This PR fixes the following issues:

fix: #569

I updated the Twitter logo to the new X logo as part of the company's recent rebranding effort. The new logo is a simple black-and-white "X" instead of the iconic blue and white bird logo. I made this change by replacing the bird svg in theme.config.tsx to a new svg file.

Screenshot

Status

• Code changes have been tested against prettier, or there are no code changes
• I know how to update typings and have done so, or typings don't need updating

Semantic versioning classification:

• This PR changes the codebase
  • This PR includes breaking changes (methods removed or renamed, parameters moved or removed)
  • This PR changes the internal workings with no modifications to the external API (bug fixes, performance improvements)
• This PR only includes non-code changes, like changes to documentation, README, etc.

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[CLAassistant]

All committers have signed the CLA.

[aidenybai]

nice! lgtm