remove the reader window session redux state synchronisation between main/renderer process to replace it with read/write disk instead and fix readingFinished

[panaC]

Remove the redux state synchronization between the reader and the main process. Instead, persist only the specific actions that need to be saved (e.g., config or locator), favoring atomic updates rather than syncing the entire state.

The reader session state is currently initialized when a new reader is created but is never updated with the latest reader Redux state. It replace this behavior with a read/write mechanism to disk instead.

A strict Redux state hydration is now sent to the reader window, with no inheritance from the main Redux state.

The reader publication identifier is added to the sender key in the action object produced by the sync function between the renderer and the main process. This removes the need to query the reader win session state to determine the pubId.

Add an inversion of control for closing reader from main process in the readingFinished issues with the reader sync and the reader closing that should be delayed. Fixes #3446