Move this code snippet and description in support section from UIKit

Author: dhananjayj-dev

fern/docs/pages/plug-sdk/ios/features.mdx

@@ -69,14 +69,14 @@ await DevRev.updateUser(Identity(organizationID: "organization-1337"))
 
 ## PLuG support chat
 
-### UIKit
-
 The DevRev SDK allows you to configure the theme dynamically based on the system appearance or use a default theme configured in the DevRev portal.
 
 ```swift
 DevRev.prefersSystemTheme: Bool
 ```
 
+### UIKit
+
 The support chat feature can be shown as a modal screen from a specific view controller or the top-most one, or can be pushed onto a navigation stack. 
 
 To show the support chat screen in your app, you can use the following overloaded method: