fix: make showTitle work for sizeChanger

[zhiyuc123]

close https://github.com/react-component/pagination/issues/370

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[codecov[bot]]

Codecov Report

Merging #372 (3cd199e) into master (04b57e6) will increase coverage by 0.02%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #372      +/-   ##
==========================================
+ Coverage   92.66%   92.69%   +0.02%     
==========================================
  Files           3        3              
  Lines         341      342       +1     
  Branches      119      120       +1     
==========================================
+ Hits          316      317       +1     
  Misses         25       25              

Impacted Files	Coverage Δ
src/Pagination.jsx	91.41% <ø> (ø)
src/Options.jsx	98.46% <100.00%> (+0.02%)	:arrow_up:

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[afc163]

ci failed