Refine the --exclude option for make-pot

This adds the `node_modules` and `wordpress` directories to the exclude list for the `make-pot` command.

Because WordPress is installed as a Composer dependency, the strings in WordPress Core could unintentionally be included in translation files when a text domain is missing.

There should not be any strings that need translating in these directories, so excluding them saves time and is more performant.

Author: desrosj

composer.json

@@ -69,7 +69,7 @@
         "i18n-mo": "vendor/bin/wp i18n make-mo ./languages",
         "i18n-php": "vendor/bin/wp --allow-root i18n make-php ./languages",
         "i18n-po": "vendor/bin/wp i18n update-po ./languages/wp-module-performance.pot ./languages",
-        "i18n-pot": "vendor/bin/wp i18n make-pot . ./languages/wp-module-performance.pot --domain=wp-module-performance --headers='{\"Report-Msgid-Bugs-To\":\"https://github.com/newfold-labs/wp-module-performance/issues\",\"POT-Creation-Date\":null}' --exclude=src,tests,vendor,assets --include=build/*.min.js",
+        "i18n-pot": "vendor/bin/wp i18n make-pot . ./languages/wp-module-performance.pot --domain=wp-module-performance --headers='{\"Report-Msgid-Bugs-To\":\"https://github.com/newfold-labs/wp-module-performance/issues\",\"POT-Creation-Date\":null}' --exclude=src,tests,vendor,assets,node_modules,wordpress --include=build/*.min.js",
         "test": [
             "phpunit --bootstrap tests/phpunit/bootstrap.php",
             "codecept run wpunit"