Fixed issue with vega

Author: george-gca

_includes/scripts/vega.liquid

@@ -19,7 +19,7 @@
   ></script>
 
   <script>
-    let theme = determineComputedTheme();
+    let pageTheme = determineComputedTheme();
 
     /* Create vega lite chart as another node and hide the code block, appending the vega lite node after it
        this is done to enable retrieving the code again when changing theme between light/dark */
@@ -35,7 +35,7 @@
           backup.after(chartElement);
 
           /* Embed the visualization in the container */
-          if (theme === 'dark') {
+          if (pageTheme === 'dark') {
             vegaEmbed(chartElement, JSON.parse(jsonData), { theme: 'dark' });
           } else {
             vegaEmbed(chartElement, JSON.parse(jsonData));