Added and/or updated config files

.github/workflows/build.yml

@@ -52,7 +52,7 @@ jobs:
       # Our action will install node, npm and yarn, cd into `./js`, run `yarn run build` (and
       # `yarn run build-typings` if desired), then commit and upload any changes
       - name: Build production JS
-        uses: flarum/action-build@2
+        uses: flarum/action-build@3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           build_script: build
@@ -82,7 +82,7 @@ jobs:
       # Our action will install node, npm and yarn, cd into `./js`, run `yarn run build` (and
       # `yarn run build-typings` if desired). It will NOT commit and upload.
       - name: Build production JS
-        uses: flarum/action-build@2
+        uses: flarum/action-build@3
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           build_script: build

.vscode/settings.json

@@ -65,6 +65,7 @@
     "bmewburn.vscode-intelephense-client",
     "dbaeumer.vscode-eslint",
     "esbenp.prettier-vscode",
-    "felixfbecker.php-debug"
+    "xdebug.php-debug",
+    "firefox-devtools.vscode-firefox-debug"
   ]
 }