Last element to style is the button. Click it in Figma, copy the CSS (even the Width and the Height for this one) and come back in the Studio : Search for the Style component in the palette, drag & drop it directly in the App Viewer button, open the style and paste your CSS. (Don't forget the "--" before at the beginning of every line).
CTRL + S in the editor to apply the CSS.

You now have all you elements visually displayed as in Figma.

However, the layout of the page still doesn't match with the Figma design : Let's fix it in the next step.