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

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

frontend/features/ping-feature/build.gradle.kts

@@ -18,15 +18,6 @@ version = "1.0.0"
 kotlin {
   jvm()
 
-  js(IR) {
-    binaries.library()
-    browser {
-      testTask {
-        enabled = false
-      }
-    }
-  }
-
   wasmJs {
     binaries.library()
     browser {
@@ -78,8 +69,5 @@ kotlin {
       implementation(compose.uiTooling)
     }
 
-    jsMain.dependencies {
-      implementation(libs.ktor.client.js)
-    }
   }
 }