fix: fix wrong state

[roftLin]

这个组件并没有current状态（可能某个版本删去了）,对应的逻辑应该重新调整，更符合实际情况。

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[codecov]

Codecov Report

Merging #316 (7b0550c) into master (59f5599) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #316   +/-   ##
=======================================
  Coverage   91.43%   91.43%           
=======================================
  Files           3        3           
  Lines         327      327           
  Branches      113      113           
=======================================
  Hits          299      299           
  Misses         28       28           

Impacted Files	Coverage Δ
src/Options.jsx	93.75% <100.00%> (ø)

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[lgtm-com]

This pull request fixes 1 alert when merging 7b0550c into 59f5599 - view on LGTM.com

fixed alerts:

• 1 for Unused or undefined state property

[yoyo837]

@afc163 看下他说的这个current, 是不是 #188 里应该使用的props上的current?