changed code block color in copilot chat (#1350)

Author: alinashklyar

assets/css/docs.min.css

@@ -33,3 +33,9 @@
   inset: 0;
   margin: auto;
 }
+
+.codehilite {
+  code {
+    color: $helphub-copilot-code-color !important
+  }
+}

assets/css/docs.min.css.map

@@ -71,6 +71,7 @@ $bd-link-hover-color: color.adjust($bd-link-color, $lightness: -15%) !default;
 $helpbub-bg: #3f4255;
 $helpbub-text-color: #b0c4e7;
 $helpbub-border: #35384b;
+$helphub-copilot-code-color: #eff;
 
 // Fonts
 // stylelint-disable value-keyword-case