use break-word in profile popover fields (#30366)

webapp/channels/src/components/profile_popover/profile_popover.scss

@@ -218,6 +218,7 @@ $profilePopoverBorderWidth: 1px;
 
             .user-popover__subtitle-text {
                 margin: 0;
+                overflow-wrap: break-word;
             }
         }