Tweak colors of wires and background gradient in main banner

[Nishant-Ray]

• The wire and background gradient seem a little off
• See the Figma design for SVG content as needed (ask me if cannot access Figma design)
  • See the the top left most screen titled "New Design"
• For this and all other issues with the revamp tag, create a branch off of the branch revamp and create a PR that merges your branch into the revamp branch!