Rename customCSSSheet variable to customCSSSheets

src/_includes/asummersend/base.njk

@@ -1,5 +1,5 @@
 ---
-customCSSSheet: ["asummersend"]
+customCSSSheets: ["asummersend"]
 ---
 
 {% extends "global/baselayout.njk" %}

src/_includes/cassettebeasts/base.njk

@@ -1,5 +1,5 @@
 ---
-customCSSSheet: ["cassettebeasts"]
+customCSSSheets: ["cassettebeasts"]
 ---
 
 {% extends "global/baselayout.njk" %}

src/_includes/global/baselayout.njk

@@ -13,8 +13,8 @@
 
         {# CSS #}
         {% include "global/css-bundle.njk" %}
-    {% if customCSSSheet %}
-        {%- for sheet in customCSSSheet -%}
+    {% if customCSSSheets %}
+        {%- for sheet in customCSSSheets -%}
         <link rel="stylesheet" href="{{'/assets/css/' + sheet + '.css' | url | safe}}">
         {%- endfor -%}
     {% endif %}

src/_includes/starwarskotor/base.njk

@@ -1,5 +1,5 @@
 ---
-customCSSSheet: ["starwarskotor"]
+customCSSSheets: ["starwarskotor"]
 ---
 
 {% extends "global/baselayout.njk" %}

src/pages/guestbook.njk

@@ -1,6 +1,6 @@
 ---
 title: Guestbook
-customCSSSheet: ["svgIconControl", "comments"]
+customCSSSheets: ["svgIconControl", "comments"]
 customJSFiles: ["svgIconControl", "googleSheetsReaderGizmo", "comments"]
 eleventyNavigation:
     key: Guestbook