Use code includes and tabs in mvc-controller/ann.adoc

See gh-22171

framework-docs/modules/ROOT/pages/web/webflux/controller/ann.adoc

@@ -20,7 +20,7 @@ Java::
 ----
 	@Configuration
 	@ComponentScan("org.example.web") // <1>
-	public class WebConfig {
+	public class WebConfiguration {
 
 		// ...
 	}
@@ -33,7 +33,7 @@ Kotlin::
 ----
 	@Configuration
 	@ComponentScan("org.example.web") // <1>
-	class WebConfig {
+	class WebConfiguration {
 
 		// ...
 	}

framework-docs/modules/ROOT/pages/web/webmvc/mvc-controller/ann.adoc

@@ -12,54 +12,7 @@ annotated class, indicating its role as a web component.
 To enable auto-detection of such `@Controller` beans, you can add component scanning to
 your Java configuration, as the following example shows:
 
-[tabs]
-======
-Java::
-+
-[source,java,indent=0,subs="verbatim,quotes",role="primary"]
-----
-	@Configuration
-	@ComponentScan("org.example.web")
-	public class WebConfig {
-
-		// ...
-	}
-----
-
-Kotlin::
-+
-[source,kotlin,indent=0,subs="verbatim,quotes",role="secondary"]
-----
-	@Configuration
-	@ComponentScan("org.example.web")
-	class WebConfig {
-
-		// ...
-	}
-----
-======
-
-The following example shows the XML configuration equivalent of the preceding example:
-
-[source,xml,indent=0,subs="verbatim,quotes"]
-----
-	<?xml version="1.0" encoding="UTF-8"?>
-	<beans xmlns="http://www.springframework.org/schema/beans"
-		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		xmlns:p="http://www.springframework.org/schema/p"
-		xmlns:context="http://www.springframework.org/schema/context"
-		xsi:schemaLocation="
-			http://www.springframework.org/schema/beans
-			https://www.springframework.org/schema/beans/spring-beans.xsd
-			http://www.springframework.org/schema/context
-			https://www.springframework.org/schema/context/spring-context.xsd">
-
-		<context:component-scan base-package="org.example.web"/>
-
-		<!-- ... -->
-
-	</beans>
-----
+include-code::./WebConfiguration[tag=snippet,indent=0]
 
 `@RestController` is a xref:core/beans/classpath-scanning.adoc#beans-meta-annotations[composed annotation] that is
 itself meta-annotated with `@Controller` and `@ResponseBody` to indicate a controller whose