Handle deprecation of android kotlin synthetic bindings

As announced in this [blog post](https://android-developers.googleblog.com/2020/11/the-future-of-kotlin-android-extensions.html) the synthetic view bindings will be deprecated and we should refactor the app to use the recommended way of accessing layout views through ViewBindings.

We also need to make sure the `@Parcelize` related code works with the new recommended plugin.

Locate the app's Kotlin synthetic view binding usage and the setup for @Parcelize. Read the Android ViewBindings guidance linked in the issue, then identify all affected app code and plugin configuration. Done means synthetic bindings are replaced with ViewBindings and the @Parcelize-related code still works with the recommended plugin.

Written by the indexing model from the issue text.