Fixed build warnings on android

Author: Choochmeque

android/build.gradle.kts

@@ -1,15 +1,16 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+
 plugins {
     id("com.android.library")
     id("org.jetbrains.kotlin.android")
 }
 
 android {
     namespace = "app.tauri.share"
-    compileSdk = 34
+    compileSdk = 35
 
     defaultConfig {
-        minSdk = 24
-        targetSdk = 34
+        minSdk = 21
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         consumerProguardFiles("consumer-rules.pro")
@@ -28,8 +29,10 @@ android {
         sourceCompatibility = JavaVersion.VERSION_1_8
         targetCompatibility = JavaVersion.VERSION_1_8
     }
-    kotlinOptions {
-        jvmTarget = "1.8"
+    kotlin {
+        compilerOptions {
+            jvmTarget = JvmTarget.JVM_1_8
+        }
     }
 }