Update Android documentation to choose DevRev theme or system theme preference

Author: dhananjayj-dev

fern/docs/pages/sdks/mobile/android/features.mdx

@@ -253,6 +253,24 @@ For example:
   </Tab>
 </Tabs>
 
+## Dynamic theme configuration
+
+The DevRev SDK allows you to configure the theme dynamically based on the system appearance, or use the theme configured on the DevRev portal. By default, the theme will be dynamic and follow the system appearance.
+
+<Tabs>
+  <Tab title="Kotlin">
+   ```kotlin
+   DevRev.setShouldPreferSystemTheme(value: Boolean)
+   ```
+  </Tab>
+  <Tab title="Java">
+   ```java
+   DevRev.INSTANCE.setShouldPreferSystemTheme(boolean value);
+   ```
+  </Tab>
+</Tabs>
+
+
 ## Analytics
 
 The DevRev SDK allows you to send custom analytic events by using a name and a string dictionary. You can track these events using the following function: