Expose cometbft genesis params.

[batconjurer]

Describe your changes

Exposes some cometbft genesis params in Namada genesis files. Resolves issue #2026.

Indicate on which release or other PRs this topic is based on

Checklist before merging to draft

• I have added a changelog
• Git history is in acceptable state

[codecov]

Codecov Report

Attention: Patch coverage is 8.92857% with 51 lines in your changes are missing coverage. Please review.

Project coverage is 53.92%. Comparing base (2535c9c) to head (b9cc37d).

Files	Patch %	Lines
crates/apps/src/lib/node/ledger/tendermint_node.rs	0.00%	34 Missing ⚠️
crates/apps/src/lib/config/genesis/templates.rs	17.64%	14 Missing ⚠️
crates/core/src/key/mod.rs	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2797      +/-   ##
==========================================
- Coverage   53.95%   53.92%   -0.03%     
==========================================
  Files         308      308              
  Lines      100018   100072      +54     
==========================================
+ Hits        53967    53968       +1     
- Misses      46051    46104      +53     

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[sug0]

the only thing we cared about from this pr was the ability to configure cometbft block sizes, which was implemented here: #2187