add npm install to build script(no idea why it was missing)

.github/workflows/publish.yml

@@ -26,6 +26,7 @@ jobs:
                     wget https://www.iana.org/assignments/uri-schemes/uri-schemes-1.csv
                     cat uri-schemes-1.csv | python -c 'import csv, json, sys; print(json.dumps([dict(r) for r in csv.DictReader(sys.stdin)]))' > test.json
                     jq 'map(.schema = .["URI Scheme"])' test.json  > schemas.json
+                    npm install
                     npm run build
                     mkdir ${{ env.PLUGIN_NAME }}
                     cp build/main.js build/manifest.json build/styles.css ${{ env.PLUGIN_NAME }}