chore: Address PR feedback

Author: kellyhutchins

demos/description-region/app.js

@@ -26,7 +26,7 @@ function handleModeChange() {
   lightModeCss.disabled = isDarkMode;
   toggleModeEl.icon = isDarkMode ? "moon" : "brightness";
   document.body.className = isDarkMode ? "calcite-mode-dark" : "";
-
+  mapEl.basemap = isDarkMode ? "dark-gray" : "gray";
   document.querySelectorAll(`.calcite-mode-${isDarkMode ? "light" : "dark"}`).forEach(node =>
     node.classList.replace(`calcite-mode-${isDarkMode ? "light" : "dark"}`, `calcite-mode-${mode}`)
   );

demos/reduced-motion/index.html

@@ -11,7 +11,6 @@
   <!-- ArcGIS Maps SDK for JavaScript imports -->
   <script src="https://js.arcgis.com/4.32/"></script>
   <link id="jsapi-mode-light" rel="stylesheet" href="https://js.arcgis.com/4.32/esri/themes/light/main.css" />
-  <link disabled id="jsapi-mode-dark" rel="stylesheet" href="https://js.arcgis.com/4.32/esri/themes/dark/main.css" />
   <script type="module" src="https://js.arcgis.com/map-components/4.32/arcgis-map-components.esm.js"></script>
 
   <!-- Demo imports -->
@@ -29,8 +28,6 @@
         Disable animation
         <calcite-switch id="animationControl"></calcite-switch>
       </calcite-label>
-
-
     </calcite-navigation>
 
     <arcgis-map id="map" item-id="03c4fa085ece410dadd9aa6e44130508">