[MM-23719] api4/channel: add move channel to a team endpoint (#14246)

* api4: add move channel method

* api4: add tests for move channel, model: add move channel to client4.go

* add api.channel.move_channel.type.invalid message

* model/client4: remove a redundant line

* api4/channel: add tests for gm and private channel types

* app/channel: update move channel comment

* app/channel: add extra check if a users joins to channel during movement

* app/channel: log errors for post move channel

* app/channel: remove deactivated members by default while moving a ch.

* model/client: update move channel command

* fix vet errors

* app/channel: add missing webhook updates

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

model/client4.go

@@ -2456,6 +2456,19 @@ func (c *Client4) DeleteChannel(channelId string) (bool, *Response) {
 	return CheckStatusOK(r), BuildResponse(r)
 }
 
+// MoveChannel moves the channel to the destination team.
+func (c *Client4) MoveChannel(channelId, teamId string) (*Channel, *Response) {
+	requestBody := map[string]string{
+		"team_id": teamId,
+	}
+	r, err := c.DoApiPost(c.GetChannelRoute(channelId)+"/move", MapToJson(requestBody))
+	if err != nil {
+		return nil, BuildErrorResponse(r, err)
+	}
+	defer closeBody(r)
+	return ChannelFromJson(r.Body), BuildResponse(r)
+}
+
 // GetChannelByName returns a channel based on the provided channel name and team id strings.
 func (c *Client4) GetChannelByName(channelName, teamId string, etag string) (*Channel, *Response) {
 	r, err := c.DoApiGet(c.GetChannelByNameRoute(channelName, teamId), etag)