dont use elementsCount as it returns 1

Author: nbransby

firebase-common/src/androidMain/kotlin/dev/teamhub/firebase/encoders.kt

@@ -18,9 +18,9 @@ class FirebaseEncoder : Encoder {
 
     @Suppress("UNCHECKED_CAST")
     override fun beginStructure(desc: SerialDescriptor, vararg typeParams: KSerializer<*>) = when(desc.kind as StructureKind) {
-        StructureKind.LIST -> MutableList<Any?>(desc.elementsCount) { null }
+        StructureKind.LIST -> mutableListOf<Any?>()
             .also { value = it }
-            .let { FirebaseCompositeEncoder { _, index, value -> it[index] = value } }
+            .let { FirebaseCompositeEncoder { _, index, value -> it.add(index, value) } }
         StructureKind.MAP,  StructureKind.CLASS -> mutableMapOf<Any?, Any?>()
             .also { value = it }
             .let { FirebaseCompositeEncoder { _, index, value -> it[desc.getElementName(index)] = value } }

firebase-common/src/androidMain/kotlin/dev/teamhub/firebase/serializers.kt

@@ -17,7 +17,7 @@ class FirebaseMapSerializer : KSerializer<Map<String, Any?>> {
     lateinit var keys: List<String>
     lateinit var map: Map<String, Any?>
 
-    override val descriptor= object : SerialDescriptor {
+    override val descriptor = object : SerialDescriptor {
         override val kind = StructureKind.MAP
         override val name = "kotlin.Map<String, Any>"
         override fun getElementIndex(name: String) = keys.indexOf(name)
@@ -75,9 +75,9 @@ class FirebaseListSerializer : KSerializer<List<Any?>> {
 
     override fun deserialize(decoder: Decoder): List<Any?> {
         val collectionDecoder = decoder.beginStructure(descriptor) as FirebaseCompositeDecoder
-        val list = MutableList<Any?>(collectionDecoder.decodeCollectionSize(descriptor)) { null }
+        val list = mutableListOf<Any?>()
         list.forEachIndexed { index, _ ->
-            list[index] = collectionDecoder.decodeNullableSerializableElement(index)
+            list.add(index, collectionDecoder.decodeNullableSerializableElement(index))
         }
         return list
     }