Updated decodeArray to handle empty arrays

xxclient/src/main/java/io/elixxir/xxclient/models/BindingsModel.kt

@@ -29,13 +29,17 @@ interface BindingsModel {
             }
         }
 
-        inline fun <reified T> decodeArray(data: ByteArray?): List<T> {
+        internal inline fun <reified T> decodeArray(data: ByteArray?): List<T> {
             return data?.run {
-                if (isNotEmpty() && decodeToString() != "null") {
+                if (isValidData()) {
                     val typeToken = object : TypeToken<Array<T>>() {}.type
                     Gson().fromJson<Array<T>>(decodeToString(), typeToken).toList()
                 } else listOf()
             } ?: listOf()
         }
+
+        internal fun ByteArray.isValidData(): Boolean {
+            return isNotEmpty() && decodeToString() != "[]" && decodeToString() != "null"
+        }
     }
 }
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