Fix: Dragging multiple files when multiple false doesn't apply rejectStyle

[ianhowe76]

What kind of change does this PR introduce?

• bugfix
• feature
• refactoring / style
• build / chore
• documentation

Did you add tests for your changes?

• Yes, my code is well tested
• Not relevant

If relevant, did you update the documentation?

• Yes, I've updated the documentation
• Not relevant

Summary

Does this PR introduce a breaking change?

Other information
closes #488

[codecov]

Codecov Report

Merging #489 into master will increase coverage by 0.5%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master     #489     +/-   ##
=========================================
+ Coverage   96.44%   96.95%   +0.5%     
=========================================
  Files           3        3             
  Lines         197      197             
  Branches       51       51             
=========================================
+ Hits          190      191      +1     
+ Misses          7        6      -1

Impacted Files	Coverage Δ
src/index.js	97.07% <100%> (+0.58%)	⬆️

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[okonet]

Thanks for submitting it! Could you please add a relevant test for it?

[ianhowe76]

Added tests

[okonet]

@ianhowe76 CI build is failing. Can you please fix it?

[okonet]

Thanks @ianhowe76 for working on this!