chore(code): Store precommits and send to host if value is decided

[ancazamfir]

Closes: #XXX

More significant changes are:

• Move the multiplexing of ReceivedBlock with Proposal fully in the consensus actor
• Store the received blocks in the consensus actor (instead of driver)
• Store the precommits in consensus actor
• Consensus to add the precommits to the decision from driver and send to host
• Host sends the commits to value builder

TODO in a subsequent PR
- [ ] Value builder uses the commits (together with the block parts) to build and store

---

PR author checklist

• Reference GitHub issue
• Ensure PR title follows the conventional commits spec

[codecov]

Codecov Report

Attention: Patch coverage is 97.05882% with 2 lines in your changes missing coverage. Please review.

Project coverage is 86.81%. Comparing base (6f8ccd0) to head (5608005).

Files	Patch %	Lines
code/crates/actors/src/consensus.rs	98.36%	1 Missing ⚠️
code/crates/test-app/src/value_builder.rs	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #234      +/-   ##
==========================================
+ Coverage   86.63%   86.81%   +0.18%     
==========================================
  Files          59       59              
  Lines        4786     4805      +19     
==========================================
+ Hits         4146     4171      +25     
+ Misses        640      634       -6     

Flag	Coverage Δ
integration	86.87% <97.06%> (+0.18%)	⬆️
mbt	17.34% <ø> (ø)

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[romac]

Very nice!