JS-spezifische Module und Dateien entfernt, Multiplattform-Targets korrigiert

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

frontend/core/sync/build.gradle.kts

@@ -10,15 +10,6 @@ plugins {
 kotlin {
   jvm()
 
-  js(IR) {
-    binaries.library()
-    browser {
-      testTask {
-        enabled = false
-      }
-    }
-  }
-
   wasmJs {
     binaries.library()
     browser {
@@ -32,7 +23,7 @@ kotlin {
     commonMain.dependencies {
       // Correct dependency: Syncable interface is in shared core domain
       implementation(projects.core.coreDomain)
-      // Also include frontend domain if needed (e.g. for frontend specific models)
+      // Also include frontend domain if needed (e.g., for frontend-specific models)
       implementation(projects.frontend.core.domain)
 
       // Networking