change(notification_client): use cross process locking event and media stores instead of in-memory ones

[stefanceriu]

This will allow the NSE process to populate the event cache store with even data after retrieving it from sync, as opposed to dropping after rendering the notification it as it did previously.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.51%. Comparing base (ce65317) to head (a836b72).
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5934   +/-   ##
=======================================
  Coverage   88.51%   88.51%           
=======================================
  Files         363      363           
  Lines      103469   103471    +2     
  Branches   103469   103471    +2     
=======================================
+ Hits        91582    91587    +5     
+ Misses       7533     7529    -4     
- Partials     4354     4355    +1     

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[codspeed-hq]

CodSpeed Performance Report

Merging #5934 will not alter performance

_{Comparing stefan/notificationClientCrossProcessLockingStores (a836b72) with main (ce65317)}

Summary

✅ 50 untouched