Update build scripts and configure multiplatform project

Added a Gradle build script for the test-app module with Kotlin Multiplatform configuration, including JS and JVM targets. Upgraded Kotlin plugin version to 2.1.10, updated dependencies, and adjusted the JS distribution path. Renamed the JS file in UndertowServer configuration for accuracy.

build.gradle.kts

@@ -3,7 +3,7 @@
 import org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi
 
 plugins {
-    kotlin("multiplatform") version "2.1.0"
+    kotlin("multiplatform") version "2.1.10"
     `maven-publish`
     signing
 }

test-app/build.gradle.kts

@@ -0,0 +1,59 @@
+@file:OptIn(ExperimentalKotlinGradlePluginApi::class)
+
+import org.jetbrains.kotlin.gradle.ExperimentalKotlinGradlePluginApi
+
+plugins {
+    kotlin("multiplatform") version "2.1.10"
+}
+
+group = "nl.astraeus"
+version = "2.0.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+    maven {
+        setUrl("https://gitea.astraeus.nl/api/packages/rnentjes/maven")
+    }
+    maven {
+        setUrl("https://gitea.astraeus.nl:8443/api/packages/rnentjes/maven")
+    }
+}
+
+kotlin {
+    js {
+        compilerOptions {
+            target.set("es2015")
+        }
+        browser {
+            commonWebpackConfig {
+                sourceMaps = true
+            }
+            binaries.executable()
+            distribution {
+                outputDirectory.set(File("$projectDir/web/"))
+            }
+        }
+    }
+    jvm {
+        withJava()
+    }
+
+    sourceSets {
+        val commonMain by getting {
+            dependencies {
+                api("nl.astraeus:vst-ui-base")
+            }
+        }
+        val jsMain by getting {
+            dependencies {
+                api("nl.astraeus:kotlin-komponent:1.2.4")
+            }
+        }
+        val jsTest by getting {
+            dependencies {
+                implementation(kotlin("test"))
+            }
+        }
+        val jvmMain by getting
+    }
+}

test-app/data/db.txt

@@ -0,0 +1 @@
+The db will be created in this directory

test-app/src/jvmMain/kotlin/nl/astraeus/vst/ui/Test.kt

@@ -16,6 +16,6 @@ fun main() {
 
   UndertowServer.start(
     "Vst UI-base Test",
-    "/vst-ui-base-test.js"
+    "/test-app.js"
   )
 }