Implement PaperScroll card component with unrolling animation

[taesungh]

Building on design from #54,

• Use separate paper body and edge graphics to create adaptive scrolls
  • Scroll edges are attached to body, but body graphic is stretched to fit
• Switch to vertical scroll design for narrower views by rotating edges
• Replace Fade entrance with unrolling effect
  • Animate scroll edge positions and mask the card body to within the scroll edges
  • Scroll unrolls from center when horizontal and from top when vertical

[taesungh]

Hey @samderanova, could you check with graphics for some feedback on this new design?
Some potential nitpicks they may have:

• Scroll body texture is stretched for vertical designs rather than rotated
• Currently have only the light variant and not the dark variant

[samderanova]

Hey @taesungh, I compared the Figma design with what we have and noticed a few small things:

• The logo on the "What is ZotHacks?" card should be green instead of black
• The "apply as a mentor button" shouldn't be 100% the width of the container it's in

[taesungh]

The logo color is somewhat being addressed in #60. For the mentor button sizing, I suppose the design is slightly ambiguous, but I would consider those changes as beyond the scope of this paper scroll design, so we should address them separately (but perhaps together with updating the color of the Apply button).

[samderanova]

Looks good!