Update session persistence design

[salonichf5]

Proposed changes

Updates the session persistence design to showcase the current design considerations

Please focus on (optional): If you any specific areas where you would like reviewers to focus their attention or provide
specific feedback, add them here.

Closes #ISSUE

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

Release notes

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please add a brief note that summarizes the change.

NONE

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.11%. Comparing base (63b2015) to head (142008d).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4314      +/-   ##
==========================================
+ Coverage   86.08%   86.11%   +0.02%     
==========================================
  Files         132      132              
  Lines       14342    14342              
  Branches       35       35              
==========================================
+ Hits        12346    12350       +4     
+ Misses       1793     1790       -3     
+ Partials      203      202       -1     

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