Fix some rendering issues

android/build.gradle.kts

@@ -2,6 +2,7 @@ plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.compose)
     alias(libs.plugins.compose)
+    alias(libs.plugins.jetbrains.kotlin.android)
 }
 
 android {
@@ -26,15 +27,16 @@ android {
         implementation(libs.androidx.activity.compose)
 //        implementation(libs.compose.ui.text.googlefonts)
         implementation(projects.commonUI)
-        implementation(compose.components.uiToolingPreview)
+//        implementation(compose.components.uiToolingPreview)
+        implementation(libs.androidx.tooling.preview)
 
         testImplementation(libs.kotlin.test)
         testImplementation(libs.atrium)
     }
 
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_11
-        targetCompatibility = JavaVersion.VERSION_11
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
     }
 
     buildTypes {
@@ -48,4 +50,10 @@ android {
             merges += "/META-INF/{AL2.0,LGPL2.1}"
         }
     }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+}
+dependencies {
+    implementation(libs.androidx.core.ktx)
 }

android/src/main/kotlin/ch/dissem/android/MainActivity.kt

@@ -4,8 +4,8 @@ import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.tooling.preview.Preview
 import ch.dissem.yaep.ui.common.App
-import org.jetbrains.compose.ui.tooling.preview.Preview
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {