Focus last focused element on modal close – restored after wrong merge

[Morpheu5]

Sorry Chris!

[codecov]

Codecov Report

Merging #533 (b65fc80) into master (7456360) will increase coverage by 0.01%.
The diff coverage is 43.75%.

❗ Current head b65fc80 differs from pull request most recent head 866cd75. Consider uploading reports for the commit 866cd75 to get more accurate results

@@            Coverage Diff             @@
##           master     #533      +/-   ##
==========================================
+ Coverage   30.34%   30.35%   +0.01%     
==========================================
  Files         310      311       +1     
  Lines       15857    15873      +16     
  Branches     4478     4483       +5     
==========================================
+ Hits         4812     4819       +7     
- Misses      10943    10952       +9     
  Partials      102      102              

Impacted Files	Coverage Δ
src/app/state/modalFocusMiddleware.ts	40.00% <40.00%> (ø)
src/app/state/store.tsx	100.00% <100.00%> (ø)

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[chrisjpurdy]

Well, looks like bootstrap actually does this itself, and it works with multiple modals. Oops!