Update AntD ListField styles.

[kestarumper]

This PR closes #773 by updating the AntD styles of the ListField component to match the newest version.

[codecov]

Codecov Report

Merging #776 into master will decrease coverage by 0.03%.
The diff coverage is 96.36%.

@@            Coverage Diff             @@
##           master     #776      +/-   ##
==========================================
- Coverage   97.62%   97.59%   -0.04%     
==========================================
  Files         175      175              
  Lines        3374     3405      +31     
  Branches      634      651      +17     
==========================================
+ Hits         3294     3323      +29     
  Misses          8        8              
- Partials       72       74       +2     

Impacted Files	Coverage Δ
packages/uniforms-antd/src/SubmitField.tsx	90.90% <0.00%> (-9.10%)	⬇️
packages/uniforms-antd/src/ListField.tsx	93.75% <75.00%> (-2.81%)	⬇️
packages/uniforms-antd/src/BoolField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/DateField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/ErrorField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/ErrorsField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/ListAddField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/ListDelField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/ListItemField.tsx	100.00% <100.00%> (ø)
packages/uniforms-antd/src/LongTextField.tsx	100.00% <100.00%> (ø)
... and 3 more

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