fix(points): fix "more coming soon" card corners

[bakoushin]

Description

"More coming soon" card corners aren't rounded.

Context: https://valora-app.slack.com/archives/C0684TXDR3K/p1720545011018399

Issue	Fix

Test plan

Visual assessment.

Related issues

• Related to RET-1103

Backwards compatibility

Y

Network scalability

NA

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.70%. Comparing base (2e02e91) to head (0304f76).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5627      +/-   ##
==========================================
- Coverage   86.72%   86.70%   -0.02%     
==========================================
  Files         773      773              
  Lines       31567    31567              
  Branches     5456     5456              
==========================================
- Hits        27375    27371       -4     
- Misses       3963     3967       +4     
  Partials      229      229              

Files	Coverage Δ
src/points/ActivityCard.tsx	100.00% <ø> (ø)

... and 2 files with indirect coverage changes

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