Add a dedicated full-page HTML widget that renders with zero margins, giving users complete control over the page canvas.

This would allow users (and AI tools) to generate complex HTML layouts and designs directly in proposals, without needing to upload background images and manually align content on top, a process that can be fiddly and time-consuming.

Why it matters: It unlocks significantly more flexibility for advanced proposal styling, custom branding, and AI-generated designs that go beyond what the current widget set supports.