Persist webcamBackground in the client

bbb-common-web/src/main/scala/org/bigbluebutton/api2/meeting/OldMeetingMsgHdlrActor.scala

@@ -125,7 +125,6 @@ class OldMeetingMsgHdlrActor(val olgMsgGW: OldMessageReceivedGW)
       msg.body.extId, msg.body.name, msg.body.role, msg.body.avatar, msg.body.webcamBackground, msg.body.guest,
       msg.body.guestStatus,
       msg.body.clientType))
-
   }
 
   def handlePresenterUnassignedEvtMsg(msg: PresenterUnassignedEvtMsg): Unit = {

bigbluebutton-html5/imports/api/users-persistent-data/server/modifiers/addUserPersistentData.js

@@ -29,6 +29,7 @@ export default async function addUserPersistentData(user) {
     presenter: Boolean,
     locked: Boolean,
     avatar: String,
+    webcamBackground: String,
     clientType: String,
     left: Boolean,
     effectiveConnectionType: null,
@@ -42,6 +43,7 @@ export default async function addUserPersistentData(user) {
     role,
     token,
     avatar,
+    webcamBackground,
     guest,
     color,
     pin,
@@ -55,6 +57,7 @@ export default async function addUserPersistentData(user) {
     role,
     token,
     avatar,
+    webcamBackground,
     guest,
     color,
     pin,

bigbluebutton-html5/imports/api/users/server/modifiers/addUser.js

@@ -30,6 +30,7 @@ export default async function addUser(meetingId, userData) {
     presenter: Boolean,
     locked: Boolean,
     avatar: String,
+    webcamBackground: String,
     color: String,
     pin: Boolean,
     clientType: String,