Yoga Docs: Rename website-next to website (#1613)

Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1613

So that GitHub links to edit a page point to the right place.

This will fail in OSS build until I switch the directory used by Vercel instance, but I am waiting to do that until ready to land, since that would cause other in progress changes to fail when exported.

Reviewed By: joevilches

Differential Revision: D54837857

.eslintrc.cjs

@@ -9,12 +9,7 @@
 
 module.exports = {
   root: true,
-  ignorePatterns: [
-    '/website',
-    '**/binaries/**',
-    '**/build/**',
-    '**/generated/**',
-  ],
+  ignorePatterns: ['**/binaries/**', '**/build/**', '**/generated/**'],
   overrides: [
     // Catch-all
     {