[BUG] - Swap Screen Reverse Icon Background Mismatch with Figma

[braja555]

Summary:
In the Swap screen, the reverse (swap direction) icon background differs from the Figma design.

Steps to Reproduce:
1.On iOS, launch Vultisig (Version 1.27.17).
2.Open swap screen from homepage.
3. Compare the reverse icon background with the Figma design.

Figma: https://www.figma.com/design/puB2fsVpPrBx3Sup7gaa3v/Vultisig-App?node-id=51141-192584&t=X90iMfVuy5ClhBkD-0