UI/UX Regression in v2: Centered layout reduces code readability (Horizontal Scrolling)

Unfortunately, the current chat experience feels like a significant downgrade compared to v1 in terms of UI/UX.

The centered layout with large margins is the most critical issue. Code blocks are now confined to a narrow box, forcing constant lateral (horizontal) scrolling to read even standard lines of code. v1 utilized the full width of the screen, which was far superior for programming workflows.

Additionally, the new font is harder to read. When chatting endlessly during development, clear typography is essential to reduce strain. The v1 font was better, and we really need the option to customize the font style or at least revert to the previous one.

Please consider adding a "Full Width" toggle and font settings to restore the usability we had in v1.