refactor: x/evidence audit changes (#14092)

## Description

ref: #14063 



---

### Author Checklist

*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

api/cosmos/evidence/v1beta1/evidence.pulsar.go

@@ -631,10 +631,14 @@ type Equivocation struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Height           int64                  `protobuf:"varint,1,opt,name=height,proto3" json:"height,omitempty"`
-	Time             *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=time,proto3" json:"time,omitempty"`
-	Power            int64                  `protobuf:"varint,3,opt,name=power,proto3" json:"power,omitempty"`
-	ConsensusAddress string                 `protobuf:"bytes,4,opt,name=consensus_address,json=consensusAddress,proto3" json:"consensus_address,omitempty"`
+	// height is the equivocation height.
+	Height int64 `protobuf:"varint,1,opt,name=height,proto3" json:"height,omitempty"`
+	// time is the equivocation time.
+	Time *timestamppb.Timestamp `protobuf:"bytes,2,opt,name=time,proto3" json:"time,omitempty"`
+	// power is the equivocation validator power.
+	Power int64 `protobuf:"varint,3,opt,name=power,proto3" json:"power,omitempty"`
+	// consensus_address is the equivocation validator consensus address.
+	ConsensusAddress string `protobuf:"bytes,4,opt,name=consensus_address,json=consensusAddress,proto3" json:"consensus_address,omitempty"`
 }
 
 func (x *Equivocation) Reset() {

api/cosmos/evidence/v1beta1/tx.pulsar.go

@@ -958,8 +958,10 @@ type MsgSubmitEvidence struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Submitter string     `protobuf:"bytes,1,opt,name=submitter,proto3" json:"submitter,omitempty"`
-	Evidence  *anypb.Any `protobuf:"bytes,2,opt,name=evidence,proto3" json:"evidence,omitempty"`
+	// submitter is the signer account address of evidence.
+	Submitter string `protobuf:"bytes,1,opt,name=submitter,proto3" json:"submitter,omitempty"`
+	// evidence defines the evidence of misbehavior.
+	Evidence *anypb.Any `protobuf:"bytes,2,opt,name=evidence,proto3" json:"evidence,omitempty"`
 }
 
 func (x *MsgSubmitEvidence) Reset() {