light and dark mode images for ctx menu

Author: lawreka

guides/changelogs.mdx

@@ -121,5 +121,14 @@ To add RSS feed links to your page's [contextual menu](/ai-ingestion#contextual-
 ```
 
 <Frame>
-![RSS in context menu](/images/changelog-ctx-menu.png)
+  <img 
+    src="/images/changelog-rss-ctx-light.png" 
+    alt="Changelog page in light mode with RSS feed in context menu enabled." 
+    className="block dark:hidden" 
+  />
+  <img 
+    src="/images/changelog-rss-ctx-dark.png" 
+    alt="Changelog page in dark mode with RSS feed in context menu enabled." 
+    className="hidden dark:block" 
+  />
 </Frame>