Update landing page messaging

[nwaomagirl]

No description provided.

[vercel]

@nwaomagirl is attempting to deploy a commit to the gibwork Team on Vercel.

A member of the Team first needs to authorize it.

[nwaomagirl]

What changed

• Updated the hero messaging to better reflect Gibwork's current bounty-focused positioning.
• Updated the hero description to mention bounties, hiring talent, payments, and web/mobile availability.
• Changed "Looking for Help" to "Looking to Hire" to better match the current product experience.
• Updated the hiring section copy to make the purpose of the section clearer.

Why

These changes make the landing page more accurate and aligned with Gibwork's current product experience while making the messaging clearer for both people looking to hire and people looking for work.

Testing

• Verified the updated landing page locally at http://localhost:3000.
• Deployed the updated site successfully through Vercel.