test: add Name to Account (backport #3690) (#3695)

There are a few places in celestia-node where I want to use the account
names from testnode but they weren't persisted/exposed prior to this
PR.<hr>This is an automatic backport of pull request #3690 done by
[Mergify](https://mergify.com).

Co-authored-by: Rootul P <[email protected]>

test/util/genesis/document.go

@@ -110,6 +110,7 @@ func accountsToSDKTypes(accounts []Account) ([]banktypes.Balance, []authtypes.Ge
 type Account struct {
 	PubKey  cryptotypes.PubKey
 	Balance int64
+	Name    string
 }
 
 func (ga Account) ValidateBasic() error {
@@ -119,5 +120,8 @@ func (ga Account) ValidateBasic() error {
 	if ga.Balance <= 0 {
 		return fmt.Errorf("balance must be greater than 0")
 	}
+	if ga.Name == "" {
+		return fmt.Errorf("name cannot be empty")
+	}
 	return nil
 }

test/util/genesis/genesis.go

@@ -155,6 +155,7 @@ func (g *Genesis) NewAccount(acc KeyringAccount) error {
 	account := Account{
 		PubKey:  pubKey,
 		Balance: acc.InitialTokens,
+		Name:    acc.Name,
 	}
 
 	g.accounts = append(g.accounts, account)

test/util/test_app.go

@@ -103,10 +103,11 @@ func SetupDeterministicGenesisState(testApp *app.App, pubKeys []cryptotypes.PubK
 		WithGenesisTime(time.Date(2023, 1, 1, 1, 1, 1, 1, time.UTC).UTC())
 
 	// add accounts to genesis
-	for _, pk := range pubKeys {
+	for i, pk := range pubKeys {
 		err := gen.AddAccount(genesis.Account{
 			PubKey:  pk,
 			Balance: balance,
+			Name:    fmt.Sprintf("%v", i),
 		})
 		if err != nil {
 			return nil, nil, err
@@ -237,6 +238,7 @@ func AddDeterministicValidatorToGenesis(g *genesis.Genesis) error {
 	account := genesis.Account{
 		PubKey:  validatorPubKey,
 		Balance: val.KeyringAccount.InitialTokens,
+		Name:    val.Name,
 	}
 
 	// add the validator's account to the genesis