chore: replace yarn with npm

Author: datlechin

.gitattributes

@@ -13,6 +13,6 @@ tests export-ignore
 js/dist/* -diff
 js/dist/* linguist-generated
 js/dist-typings/* linguist-generated
-js/yarn.lock -diff
+js/package-lock.json -diff
 
 * text=auto eol=lf

.github/workflows/frontend.yml

@@ -15,6 +15,6 @@ jobs:
       enable_typescript: false
 
       frontend_directory: ./js
-      main_git_branch: master
+      main_git_branch: main
     secrets:
       bundlewatch_github_token: ${{ secrets.BUNDLEWATCH_GITHUB_TOKEN }}