Left-menu scrollbar styling was lost when moving to Vue implementation
When the left-menu was moved to a Vue implementation, the scrollbar styling was reverted to the stock browser styling.
Per the conversation at https://gitter.im/gitterHQ/gitter?at=5d5c3789d45f7c26fa04990b , the scroller
class can simply be added to https://gitlab.com/gitlab-org/gitter/webapp/blob/e62aa09998b2bb7455dd3a2e5a24cf8595b4cb87/public/js/vue/left-menu/components/index.vue#L132 to restore the custom styling.
Expected:
Actual:
Edited by Eric Eastwood