Core: Added suppport for non-latin story names/IDs

[shilman]

Issue: #5876

What I did

Added back support for non-latin story names/IDs using slugify

How to test

yarn jest --testPathPattern id.js

[codecov]

Codecov Report

Merging #5963 into next will increase coverage by 0.08%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##            next    #5963      +/-   ##
=========================================
+ Coverage   34.9%   34.99%   +0.08%     
=========================================
  Files        648      648              
  Lines       9500     9482      -18     
  Branches    1345     1360      +15     
=========================================
+ Hits        3316     3318       +2     
+ Misses      5567     5534      -33     
- Partials     617      630      +13

Impacted Files	Coverage Δ
lib/router/src/utils.ts	58.06% <100%> (+2.89%)	⬆️
addons/knobs/src/registerKnobs.js	0% <0%> (ø)	⬆️
addons/a11y/src/components/Report/Info.tsx
addons/a11y/src/components/Report/Tags.tsx
addons/a11y/src/components/Report/index.tsx
addons/a11y/src/components/Report/Rules.tsx
addons/a11y/src/components/ColorBlindness.tsx
addons/a11y/src/components/A11YPanel.tsx
addons/a11y/src/components/Report/Elements.tsx
addons/a11y/src/components/Tabs.tsx
... and 16 more

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[tmeasday]

Don't love the breaking change but I think it's best we can do.

Can you add a non-latin test case?

[shilman]

I'm closing this in favor of an approach that simply eliminates punctuation but preserves unicode characters. #5964