Add whitespace linter (#24855)

server/public/model/channel_list.go

@@ -6,7 +6,6 @@ package model
 type ChannelList []*Channel
 
 func (o *ChannelList) Etag() string {
-
 	id := "0"
 	var t int64
 	var delta int64
@@ -21,7 +20,6 @@ func (o *ChannelList) Etag() string {
 			t = v.UpdateAt
 			id = v.Id
 		}
-
 	}
 
 	return Etag(id, t, delta, len(*o))
@@ -30,7 +28,6 @@ func (o *ChannelList) Etag() string {
 type ChannelListWithTeamData []*ChannelWithTeamData
 
 func (o *ChannelListWithTeamData) Etag() string {
-
 	id := "0"
 	var t int64
 	var delta int64