fix(card): Center background image

[pshe94]

Resolves #2370

[kfranqueiro]

Thanks for the PR! This looks good, but it's currently failing stylelint which is expecting background-position to come before background-size. Could you fix that? Thanks!

[codecov-io]

Codecov Report

Merging #2388 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #2388   +/-   ##
=======================================
  Coverage   98.88%   98.88%           
=======================================
  Files         100      100           
  Lines        4144     4144           
  Branches      535      535           
=======================================
  Hits         4098     4098           
  Misses         46       46

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 671aa4c...8d65a95. Read the comment docs.