docs: Active Passive Failover

[arkodg]

Fixes: #4501

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.52%. Comparing base (5698e88) to head (127c840).
Report is 8 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4637      +/-   ##
==========================================
+ Coverage   65.50%   65.52%   +0.01%     
==========================================
  Files         211      211              
  Lines       31945    31945              
==========================================
+ Hits        20925    20931       +6     
+ Misses       9774     9767       -7     
- Partials     1246     1247       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.