Channel banner sql migrations (#30274)

* Adde MySQL and Postgres migrations

* Replaced select * with column names

* removed all * from channel SQL store

* cleanup

* Fixed a duplicate column

* cleanup

* Added migrations and store support

* WIP

* used channelname slice in a missed place

* Handled patch

* Added app level tests

* Added API layer tests

* Added API layer tests

* WIP

* converted to query builder

* cleanupo

* added not null and default constraints

* Fixed test

* fixed file name

* review fixes

* review fixes

* updated migration file

* fixed text

* Review fixes

server/channels/api4/channel.go

@@ -377,6 +377,11 @@ func patchChannel(c *Context, w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	if patch.BannerInfo != nil && (originalOldChannel.Type != model.ChannelTypeOpen && originalOldChannel.Type != model.ChannelTypePrivate) {
+		c.Err = model.NewAppError("patchChannel", "api.channel.update_channel.banner_info.channel_type.not_allowed", nil, "", http.StatusBadRequest)
+		return
+	}
+
 	rchannel, appErr := c.App.PatchChannel(c.AppContext, oldChannel, patch, c.AppContext.Session().UserId)
 	if appErr != nil {
 		c.Err = appErr