Add ui-backhandler dependency to compose dependencies

Author: Omico

gradle-plugins/compose/src/main/kotlin/org/jetbrains/compose/ComposePlugin.kt

@@ -77,6 +77,9 @@ abstract class ComposePlugin : Plugin<Project> {
         @ExperimentalComposeLibrary
         val uiTestJUnit4 = composeDependency("org.jetbrains.compose.ui:ui-test-junit4")
 
+        @ExperimentalComposeLibrary
+        val uiBackHandler = composeDependency("org.jetbrains.compose.ui:ui-backhandler")
+
         @ExperimentalComposeLibrary
         val uiTest = composeDependency("org.jetbrains.compose.ui:ui-test")
         val uiTooling = composeDependency("org.jetbrains.compose.ui:ui-tooling")