Merge pull request #3613 from mmarangoni/chatbox-fix

Fixed userlist and chat scrolling in Firefox

bigbluebutton-html5/imports/ui/components/chat/message-list/styles.scss

@@ -7,6 +7,10 @@
   flex-grow: 1;
   flex-shrink: 1;
   position: relative;
+  overflow-x: hidden;
+  overflow-y: auto;
+  padding-right: 12px;
+  padding-bottom: 12px;
 }
 
 .messageList {

bigbluebutton-html5/imports/ui/components/chat/styles.scss

@@ -6,6 +6,7 @@
   display: flex;
   flex-grow: 1;
   flex-direction: column;
+  overflow: hidden;
 }
 
 .closeChat {

bigbluebutton-html5/imports/ui/components/user-list/styles.scss

@@ -91,6 +91,7 @@ $user-icons-color-hover: $color-gray;
 .content {
   @extend %flex-column;
   flex-grow: 9;
+  overflow: hidden;
 }
 
 .lists {
@@ -135,6 +136,8 @@ $user-icons-color-hover: $color-gray;
   flex-basis: 31rem;
   flex-grow: 1;
   flex-shrink: 1;
+  overflow-x: hidden;
+  overflow-y: auto;
 }
 
 .separator {