feat(crypto): Add RoomSettings::encrypt_state_events

[kaylendog]

• Add RoomSettings::encrypt_state_events, which will be used when implementing encrypted state support to the WASM SDK.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.57%. Comparing base (b3c53dd) to head (ec2918a).
⚠️ Report is 12 commits behind head on main.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5511      +/-   ##
==========================================
- Coverage   88.57%   88.57%   -0.01%     
==========================================
  Files         340      340              
  Lines       93665    93667       +2     
  Branches    93665    93667       +2     
==========================================
- Hits        82967    82964       -3     
- Misses       6567     6572       +5     
  Partials     4131     4131              

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[codspeed-hq]

CodSpeed Performance Report

Merging #5511 will not alter performance

_{Comparing kaylendog:kaylendog/room-settings (ec2918a) with main (b3c53dd)}

Summary

✅ 31 untouched benchmarks

[richvdh]

Thanks, looks good other than a couple of nits!