Fix getting started links

[berthieresteban]

What does this PR do?

Fix links for getting started react, react native, vuejs for sdk JS 7.
Les liens vers /core/2 ne seront pas accessible depuis le build netlify qui ne charge que les pages de doc du sdkl
Le test concernant les deadlink est pété d'ou le fail
(ex: src/controllers/auth/login in src/sdk/js/7//getting-started/react-native/index.md)
ce lien fonctionne sur netlify

How should this be manually tested?

Netlify

Other changes

/

Boyscout

Remove link to react kuzzle boilerplate in getting started react because it is not up to date with kuzzle versions

[rolljee]

After CI is fixed

[Aschen]

This will not fix the issue because as far I can see, we will still have problem with the dead link check.

The CI will never pass because those links are not in the same format as the others (/sdk/js/7 or /core/2) and so the program can not check if they really exists.

Why Vuepress is adding /sdk/js/7 at the beginning of links in those getting started?

[berthieresteban]

This pr fix the links in the getting started.
I agree that we still have a problem with the deadlinks check in the CI...
I don't know why Vuepress is adding /sdk/js/7 only in the getting started links.
Also Vuepress add this base_url only if the link start with a /sdk/js/7 wich will become /sdk/js/7/sdk/js/7.
I havn't seen any modification on the doc repository wich could explain that...

[codecov]

Codecov Report

Merging #492 into 7-dev will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##            7-dev     #492   +/-   ##
=======================================
  Coverage   95.57%   95.57%           
=======================================
  Files          32       32           
  Lines        1312     1312           
=======================================
  Hits         1254     1254           
  Misses         58       58

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[berthieresteban]

Links are fixed, and deadlinks checks are passing.
I locally verified the links and they're good.
On Netlify, the links aren't working because the base_url wich is equal to / on Netlify instead of /sdk/js/7 normally.
For example: /sdk/js/7/controllers/index/create is a good link for localhost/docs.kuzzle.io but not good for preview netlify because it should be /controllers/index/create.

In short, links are good but leads to 404 on Netlify.