Added js impl

Author: griffinsorrentino

firebase-messaging/src/jsMain/kotlin/dev/gitlive/firebase/messaging/externals/messaging.kt

@@ -9,4 +9,6 @@ public external fun getMessaging(
 
 public external fun getToken(messaging: Messaging = definedExternally, options: dynamic = definedExternally): Promise<String>
 
+public external fun deleteToken(messaging: Messaging = definedExternally): Promise<Boolean>
+
 public external interface Messaging

firebase-messaging/src/jsMain/kotlin/dev/gitlive/firebase/messaging/messaging.kt

@@ -22,4 +22,8 @@ public actual class FirebaseMessaging(public val js: Messaging) {
     }
 
     public actual suspend fun getToken(): String = dev.gitlive.firebase.messaging.externals.getToken(js).await()
+
+    public actual suspend fun deleteToken() {
+        dev.gitlive.firebase.messaging.externals.deleteToken(js).await()
+    }
 }

firebase-messaging/src/jvmMain/kotlin/dev/gitlive/firebase/messaging/messaging.kt

@@ -19,4 +19,8 @@ public actual class FirebaseMessaging {
     public actual suspend fun getToken(): String {
         TODO("Not yet implemented")
     }
+
+    public actual suspend fun deleteToken() {
+        TODO("Not yet implemented")
+    }
 }