fix: correct import path for Chat component

[capellari]

fixing wrong import of Chat component

[fabriciorissetto]

Just faced the same problem here

[rafaelsagastume]

The problem is import casing for Chat component on case-sensitive filesystems

On Linux and other case-sensitive environments, importing from "@/components/chat" fails because the filename is Chat.tsx.
Updated the import in page.tsx from:
Ensures the Chat component loads correctly on all platforms.

This change would greatly assist those new to the project.

[znanfelt]

This fixes: #12