🐞 Fix Glance not working issue

[igorescodro]

After moving from List to ImmutableList the Glance stopped working. It seems that serialization and/or encoding does not work very well with this library. For now, the Serializer was reverted to List and the conversion to ImmutableList will happen in the UI before rendering it.

I just found the following Exception on the stacktrace:

 java.util.concurrent.ExecutionException: kotlinx.serialization.SerializationException: Class 'SmallPersistentVector' is not registered for polymorphic serialization in the scope of 'ImmutableList'.
    Mark the base class as 'sealed' or register the serializer explicitly.
        at androidx.work.impl.utils.futures.AbstractFuture.getDoneValue(AbstractFuture.java:516)
        at androidx.work.impl.utils.futures.AbstractFuture.get(AbstractFuture.java:475)
        at androidx.work.impl.WorkerWrapper$2.run(WorkerWrapper.java:311)
        at androidx.work.impl.utils.SerialExecutor$Task.run(SerialExecutor.java:91)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1137)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:637)
        at java.lang.Thread.run(Thread.java:1012)
     Caused by: kotlinx.serialization.SerializationException: Class 'SmallPersistentVector' is not registered for polymorphic serialization in the scope of 'ImmutableList'.