Fix Sass compilation and add a test (#222)

Fixes Sass compilation for npm, yarn classic, and yarn modern - as well as adding a test for all 3

composer.json

@@ -48,7 +48,8 @@
  "[web-root]/sites/firefox/settings.php": "scaffold/nightwatch/firefox.settings.php",
  "[web-root]/sites/sites.php": "scaffold/nightwatch/sites.php",
  "[project-root]/.ddev/docker-compose.selenium.yaml": "scaffold/nightwatch/docker-compose.selenium.yaml",
- "[project-root]/test/nightwatch/example.nightwatch.js": "scaffold/nightwatch/example.nightwatch.js"
+ "[project-root]/test/nightwatch/example.nightwatch.js": "scaffold/nightwatch/example.nightwatch.js",
+ "[project-root]/phpcs.xml": "scaffold/phpcs.xml"
  }
  }
  },

scaffold/phpcs.xml

@@ -0,0 +1,36 @@
+<?xml version="1.0"?>
+<ruleset>
+ <description>PHP_CodeSniffer Standards</description>
+
+ <!-- Use colors in output. -->
+ <arg name="colors"/>
+ <!-- Show progress. -->
+ <arg value="p"/>
+
+ <!-- Add Drupal specific PHP file extensions -->
+ <arg name="extensions" value="php,inc,module,theme,install"/>
+
+ <!-- Include common Drupal standards. -->
+ <rule ref="./vendor/drupal/coder/coder_sniffer/Drupal/ruleset.xml"/>
+ <rule ref="./vendor/drupal/coder/coder_sniffer/DrupalPractice/ruleset.xml"/>
+
+
+ <!-- Apply same exclusions for T function applied by core. -->
+ <rule ref="Drupal.Semantics.FunctionT">
+ <exclude name="Drupal.Semantics.FunctionT.NotLiteralString"/>
+ </rule>
+
+ <file>web/modules/custom</file>
+ <file>web/themes/custom</file>
+ <file>web/sites</file>
+
+ <!-- Exclude JS and CSS, this is covered by yarn scripts -->
+ <exclude-pattern>**/*.js</exclude-pattern>
+ <exclude-pattern>**/*.css</exclude-pattern>
+ <!-- Autogenerated Drupal files -->
+ <exclude-pattern>*/default.settings.php</exclude-pattern>
+ <exclude-pattern>*/sites/*/files/*</exclude-pattern>
+ <exclude-pattern>*/settings.ddev.php</exclude-pattern>
+ <exclude-pattern>*/sites/simpletest/*</exclude-pattern>
+ <exclude-pattern>*/node_modules/*</exclude-pattern>
+</ruleset>