feat: implement MsgUpdateChainInfo

[lumtis]

Description

Closes: #2271

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.14%. Comparing base (8eadf56) to head (14d06c3).

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2287      +/-   ##
===========================================
+ Coverage    69.07%   69.14%   +0.06%     
===========================================
  Files          269      272       +3     
  Lines        16436    16472      +36     
===========================================
+ Hits         11353    11389      +36     
  Misses        4599     4599              
  Partials       484      484              

Files	Coverage Δ
x/authority/keeper/grpc_query_chain_info.go	100.00% <100.00%> (ø)
x/authority/keeper/msg_server_update_chain_info.go	100.00% <100.00%> (ø)
x/authority/keeper/msg_server_update_policies.go	100.00% <100.00%> (ø)
x/authority/types/message_update_chain_info.go	100.00% <100.00%> (ø)
x/authority/types/message_update_policies.go	100.00% <100.00%> (ø)

[kingpinXD]

LGTM , minor comments.
Also , I am guessing we would just update the chain info via the message not need a migration script for this ?

[lumtis]

LGTM , minor comments. Also , I am guessing we would just update the chain info via the message not need a migration script for this ?

We will continue using the hardcoded data, this one allow to add dynamically to avoid doing an upgrade to support a new chain. The structure will be empty at first