Removed the dotted line from OAuth button options

[joedemcher]

Fixes #970 (<=== Add issue number here)

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[codeclimate]

Code Climate has analyzed commit f58bfac and detected 0 issues on this pull request.

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[codecov]

Codecov Report

Merging #981 into main will increase coverage by 0.36%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #981      +/-   ##
==========================================
+ Coverage   73.26%   73.62%   +0.36%     
==========================================
  Files          40       40              
  Lines        1384     1384              
==========================================
+ Hits         1014     1019       +5     
+ Misses        370      365       -5

Impacted Files	Coverage Δ
lib/exporter.rb	94.17% <0%> (+2.24%)	⬆️

[SidharthBansal]

Well done. Looks good to me. Merging this up @jywarren!
We will be happy to take more help from you. Please help us in solving other pending issues

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