feat(backup)_: implement remaining backups and tests

Fixes status-im/status-desktop#18120

Implements the missing user data like watch only accounts and settings.
Implements tests to validate.

Author: jrainville

protocol/messenger_backup.go

@@ -100,9 +100,7 @@ func (m *Messenger) BackupData(ctx context.Context) (uint64, error) {
 		return 0, err
 	}
 	chatsToBackup := m.backupChats(ctx, clock)
-	if err != nil {
-		return 0, err
-	}
+
 	profileToBackup, err := m.backupProfile(ctx, clock)
 	if err != nil {
 		return 0, err
@@ -210,14 +208,14 @@ func (m *Messenger) BackupData(ctx context.Context) (uint64, error) {
 		pb := backupDetailsOnly()
 		pb.SettingsDetails.DataNumber = uint32(i + 1)
 		pb.Setting = d
-		// TODO find a way to get all settings
-		// fullBackup.Setting = append(fullBackup.Setting, d)
+		fullBackup.Settings = append(fullBackup.Settings, d)
 		err = m.encodeAndDispatchBackupMessage(ctx, pb, chat.ID)
 		if err != nil {
 			return 0, err
 		}
 	}
 
+	// TODO get rid of keypairs
 	// Update keypairs messages encode and dispatch
 	for i, d := range keypairsToBackup {
 		pb := backupDetailsOnly()
@@ -236,8 +234,7 @@ func (m *Messenger) BackupData(ctx context.Context) (uint64, error) {
 		pb := backupDetailsOnly()
 		pb.WatchOnlyAccountDetails.DataNumber = uint32(i + 1)
 		pb.WatchOnlyAccount = d.WatchOnlyAccount
-		// TODO find a way to get all settings
-		// fullBackup.WatchOnlyAccount = append(fullBackup.WatchOnlyAccount, d.Keypair)
+		fullBackup.WatchOnlyAccounts = append(fullBackup.WatchOnlyAccounts, d.WatchOnlyAccount)
 		err = m.encodeAndDispatchBackupMessage(ctx, pb, chat.ID)
 		if err != nil {
 			return 0, err

protocol/messenger_backup_handler.go

@@ -90,6 +90,13 @@ func (m *Messenger) handleBackup(state *ReceivedMessageState, message *protobuf.
 		errors = append(errors, err)
 	}
 
+	for _, setting := range message.Settings {
+		err = m.handleBackedUpSettings(setting)
+		if err != nil {
+			errors = append(errors, err)
+		}
+	}
+
 	err = m.handleKeypair(message.Keypair)
 	if err != nil {
 		errors = append(errors, err)
@@ -100,6 +107,13 @@ func (m *Messenger) handleBackup(state *ReceivedMessageState, message *protobuf.
 		errors = append(errors, err)
 	}
 
+	for _, watchOnlyAccount := range message.WatchOnlyAccounts {
+		err = m.handleWatchOnlyAccount(watchOnlyAccount)
+		if err != nil {
+			errors = append(errors, err)
+		}
+	}
+
 	// Send signal about applied backup progress
 	if m.config.messengerSignalsHandler != nil {
 		response := wakusync.WakuBackedUpDataResponse{