fix: click some page & prev btn

[xrkffgg]

close ant-design/ant-design#29512

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之前有个判断 上一页下一页的按钮，但其实点击触发的不是相应的，而是里层的 -item-link。这里修复了下。

增加了 点击 分页的判断，同时这两种情况 都会清空 input 。

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[xrkffgg]

我现在就是在这个地方加的判断。

逻辑是，如果是 页数按钮 或 上一页下一页的 button 触发的 input 的 blur，会清空 input 的值，并停止 input blur 的改变，而以外层点击的 改变 为准。

[xrkffgg]

我的想法，用户在输入的时候，是想去某一页，但却选择了点击其他页的形式，表示他的意愿更偏向于点击的那一页。

然后用户改变分页的意愿完成，input 清空。

不然留着会造成歧义，并且不经意的 blur 就会又改变页数。

[codecov]

Codecov Report

Merging #323 (6ba5537) into master (0bbe863) will increase coverage by 0.91%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #323      +/-   ##
==========================================
+ Coverage   91.43%   92.35%   +0.91%     
==========================================
  Files           3        3              
  Lines         327      327              
  Branches      113      113              
==========================================
+ Hits          299      302       +3     
+ Misses         28       25       -3     

Impacted Files	Coverage Δ
src/Options.jsx	98.43% <100.00%> (+4.68%)	⬆️

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[xrkffgg]

@afc163 @zombieJ PTAL

[kerm1it]

@zombieJ @afc163 看看没问题，有空发个 patch