Make member private

Signed-off-by: RMidhunSuresh <rmidhunsuresh@gmail.com>

src/domain/session/rightpanel/MemberTileViewModel.js

@@ -3,10 +3,14 @@ import {ViewModel} from "../../ViewModel.js";
 export class MemberTileViewModel extends ViewModel {
     constructor(options) {
         super(options);
-        this.member = options.member;
+        this._member = options.member;
     }
 
     get displayName() {
-        return this.member.displayName;
+        return this._member.displayName;
+    }
+
+    get userId() {
+        return this._member.userId;
     }
 }