perf: Remove indentation in REST respones (#16142)

CHANGELOG.md

@@ -114,6 +114,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (server) [#16061](https://github.com/cosmos/cosmos-sdk/pull/16061) add comet bootstrap command
 * (x/staking) [#16068](https://github.com/cosmos/cosmos-sdk/pull/16068) Update simulation to allow non-EOA accounts to stake
 * (store) [#16067](https://github.com/cosmos/cosmos-sdk/pull/16067) Add local snapshots management commands.
+* (server) [#16142](https://github.com/cosmos/cosmos-sdk/pull/16142) Remove JSON Indentation from the GRPC to REST gateway's responses. (Saving bandwidth)
 
 ### State Machine Breaking
 

server/api/server.go

@@ -63,7 +63,7 @@ func New(clientCtx client.Context, logger log.Logger, grpcSrv *grpc.Server) *Ser
 	// Using the gogo/gateway package with the gRPC-Gateway WithMarshaler option fixes the scalar field marshaling issue.
 	marshalerOption := &gateway.JSONPb{
 		EmitDefaults: true,
-		Indent:       "  ",
+		Indent:       "",
 		OrigName:     true,
 		AnyResolver:  clientCtx.InterfaceRegistry,
 	}