fix: build website (#7509)

Author: snowystinger

scripts/buildPublishedAPI.js

@@ -164,6 +164,7 @@ async function build() {
   fs.copySync(path.join(__dirname, '..', '.parcelrc'), path.join(dir, '.parcelrc'));
   fs.copySync(path.join(__dirname, '..', 'postcss.config.js'), path.join(dir, 'postcss.config.js'));
   fs.copySync(path.join(__dirname, '..', 'lib'), path.join(dir, 'lib'));
+  fs.copySync(path.join(__dirname, '..', '.yarn', 'plugins'), path.join(dir, '.yarn', 'plugins'));
   fs.copySync(path.join(__dirname, '..', 'CONTRIBUTING.md'), path.join(dir, 'CONTRIBUTING.md'));
 
   // Only copy babel patch over

scripts/buildWebsite.js

@@ -132,6 +132,7 @@ async function build() {
   fs.copySync(path.join(__dirname, '..', '.browserslistrc'), path.join(dir, '.browserslistrc'));
   fs.copySync(path.join(__dirname, '..', 'starters'), path.join(dir, 'starters'));
   fs.copySync(path.join(__dirname, '..', '.yarn', 'releases'), path.join(dir, '.yarn', 'releases'));
+  fs.copySync(path.join(__dirname, '..', '.yarn', 'plugins'), path.join(dir, '.yarn', 'plugins'));
   fs.copySync(path.join(__dirname, '..', '.yarnrc.yml'), path.join(dir, '.yarnrc.yml'));
 
   // Delete mdx files from dev/docs that shouldn't go out yet.