Prepend DOI and ARXIV URL origin when adding new url in the form

[shinyichen]

Avoid confusion of DOI and arxiv format in the URL by prepending the origin.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.5%. Comparing base (006cf95) to head (f48ac98).

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #832     +/-   ##
========================================
+ Coverage    62.5%   62.5%   +0.1%     
========================================
  Files         317     317             
  Lines       36576   36578      +2     
  Branches     1673    1674      +1     
========================================
+ Hits        22827   22838     +11     
+ Misses      13709   13700      -9     
  Partials       40      40             

Files with missing lines	Coverage Δ
src/config.ts	100.0% <100.0%> (ø)

... and 2 files with indirect coverage changes

🚀 New features to boost your workflow:

• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[thostetler]

LGTM -- just a quick question

[thostetler]

Looks good, however I wonder if there is a case for putting these in our central config src/config.ts ?

[shinyichen]

@thostetler updated, please check.