Suppressed EXPECT_ACTUAL_CLASSIFIERS_ARE_IN_BETA_WARNING compiler warning

composeApp/build.gradle.kts

@@ -14,6 +14,13 @@ plugins {
 
 
 kotlin {
+    @OptIn(ExperimentalKotlinGradlePluginApi::class)
+    compilerOptions {
+        // suppresses compiler warning: [EXPECT_ACTUAL_CLASSIFIERS_ARE_IN_BETA_WARNING] 'expect'/'actual' classes (including interfaces, objects, annotations, enums, and 'actual' typealiases) are in Beta.
+        freeCompilerArgs.add("-Xexpect-actual-classes")
+    }
+
+
     js {
         moduleName = "composeApp"
         browser {