Change extension workshop urls when running dev

[feugy]

Fix mozilla/addons#13102

---

Description

When running yarn dev:amo, the link to extension workshop in footer now point at ttps://extensionworkshop-dev.allizom.org.
Please note the url is not available 😢

I've also added .gitattribute file to force LF end of lines on checkout. Developers with auto.crlf=true in their global git configuration. One cannot run the app with CLRF in script files.

Screenshot

[codecov-io]

Codecov Report

Merging #7845 into master will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    mozilla/addons-frontend#7845      +/-   ##
==========================================
+ Coverage   98.02%   98.04%   +0.01%     
==========================================
  Files         257      259       +2     
  Lines        7051     7101      +50     
  Branches     1312     1312              
==========================================
+ Hits         6912     6962      +50     
  Misses        125      125              
  Partials       14       14

Impacted Files	Coverage Δ
src/amo/components/Routes/index.js	40% <0%> (ø)	⬆️
src/amo/pages/UserProfileEdit/index.js	100% <0%> (ø)	⬆️
src/amo/components/Header/index.js	100% <0%> (ø)	⬆️
src/core/api/index.js	100% <0%> (ø)	⬆️
...o/components/UserProfileEditNotifications/index.js	100% <0%> (ø)	⬆️
src/amo/api/users.js	100% <0%> (ø)	⬆️
src/amo/reducers/users.js	100% <0%> (ø)	⬆️
src/amo/sagas/users.js	100% <0%> (ø)	⬆️
src/amo/pages/UsersUnsubscribe/index.js	100% <0%> (ø)
src/amo/utils/notifications.js	100% <0%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 028fcb6...b3bb1ac. Read the comment docs.

[willdurand]

Thanks, that looks good. Could you please remove the bin/.gitattributes file though?

[willdurand]

@feugy not sure you receive notifications when a review has been made. Thanks for your work. I requested a minor change though :)

[feugy]

@willdurand I got the notifs, I was just busy 😄

I've removed the .gitattributes file and updated the PR description.
I reckon that very few people will checkout the code on a NTFS partition. It's could be something to consider though, since Windows now have "real" bash and could run .sh files.

[willdurand]

Yep, that's right but we try not to have too many generic files here. I believe one could configure windows globally instead.

[caitmuenster]

Thanks so much for the patch, @feugy! Your contribution has been added to our recognition wiki and your mozillians.org profile has been vouched. 🎉

Welcome onboard! I look forward to seeing you around the project. :)

[feugy]

Thank you @caitmuenster & @willdurand!