✨ Added support for theme card_asset config to GScan

refs https://github.com/TryGhost/Team/issues/1232

- Only require the right css rules depending on the `card_assets` configuration
- 🐛 removed `kg-width-wide` and `kg-width-full` from being considered as card asset, as they should always be defined in themes (it was only a problem in v4.11.x)

package.json

@@ -129,7 +129,7 @@
     "ghost-storage-base": "1.0.0",
     "glob": "7.2.0",
     "got": "9.6.0",
-    "gscan": "4.11.1",
+    "gscan": "4.12.0",
     "html-to-text": "5.1.1",
     "image-size": "1.0.0",
     "intl": "1.2.5",

yarn.lock

@@ -5870,10 +5870,10 @@ grunt@1.4.1:
     nopt "~3.0.6"
     rimraf "~3.0.2"
 
-gscan@4.11.1:
-  version "4.11.1"
-  resolved "https://registry.yarnpkg.com/gscan/-/gscan-4.11.1.tgz#119450c1aa51ac1a8abb607d8c074f84e36129e7"
-  integrity sha512-anWiynkSEh1FW8SmNIuaWuLrPZ/mVm9ylf3dF60vsnCUQVmtCJFOZhvEbINMAk8j2VEqq2zR8cEfz2VWjN004g==
+gscan@4.12.0:
+  version "4.12.0"
+  resolved "https://registry.yarnpkg.com/gscan/-/gscan-4.12.0.tgz#591c05e93d71d0ff5ea746f614c3dc0541faae49"
+  integrity sha512-ufv+g/IEsch8NPxHkDcYtpicaN1Smbjq+NveE5JTrbOUBT/oDJP8mQc5XsJqmIHuTwKGKUsr7Cus4F44g5ks7g==
   dependencies:
     "@sentry/node" "6.15.0"
     "@tryghost/config" "0.2.1"