[MM-25314] Migrate AppError from channel_member_history_store.go (#14693)

* Migrate AppError from channel_member_history_store

* Migrate AppError from channel_member_history_store

* Migrate AppError from channel_member_history_store

* Migrate AppError from channel_member_history_store

* Migrating error keys

* Review fixes.

* Regenerating i18n

* Add some i18n strings

Co-authored-by: Dante Pippi <6619666+dantepippi@users.noreply.github.com>
Co-authored-by: Jesús Espino <jespinog@gmail.com>
Co-authored-by: mattermod <mattermod@users.noreply.github.com>

app/syncables_test.go

@@ -297,9 +297,9 @@ func TestCreateDefaultMemberships(t *testing.T) {
 	timeAfterLeaving := model.GetMillis()
 
 	// Purging channelmemberhistory doesn't re-add user to channel
-	_, err = th.App.Srv().Store.ChannelMemberHistory().PermanentDeleteBatch(timeBeforeLeaving, 1000)
-	if err != nil {
-		t.Errorf("error permanently deleting channelmemberhistory: %s", err.Error())
+	_, nErr := th.App.Srv().Store.ChannelMemberHistory().PermanentDeleteBatch(timeBeforeLeaving, 1000)
+	if nErr != nil {
+		t.Errorf("error permanently deleting channelmemberhistory: %s", nErr.Error())
 	}
 
 	pErr = th.App.CreateDefaultMemberships(scienceChannelGroupSyncable.UpdateAt)
@@ -313,9 +313,9 @@ func TestCreateDefaultMemberships(t *testing.T) {
 	}
 
 	// Purging channelmemberhistory doesn't re-add user to channel
-	_, err = th.App.Srv().Jobs.Store.ChannelMemberHistory().PermanentDeleteBatch(timeAfterLeaving, 1000)
-	if err != nil {
-		t.Errorf("error permanently deleting channelmemberhistory: %s", err.Error())
+	_, nErr = th.App.Srv().Jobs.Store.ChannelMemberHistory().PermanentDeleteBatch(timeAfterLeaving, 1000)
+	if nErr != nil {
+		t.Errorf("error permanently deleting channelmemberhistory: %s", nErr.Error())
 	}
 
 	pErr = th.App.CreateDefaultMemberships(scienceChannelGroupSyncable.UpdateAt)