simplifying css

...ocketchat-authorization/client/views/permissionsRole.html

packages/rocketchat-emoji-custom/admin/emojiInfo.html

...tchat-integrations/client/views/integrationsIncoming.html

...tchat-integrations/client/views/integrationsOutgoing.html

...tchat-livechat/client/views/app/livechatCurrentChats.html

...tchat-livechat/client/views/app/livechatIntegrations.html

...ocketchat-livechat/client/views/app/livechatTriggers.html

...ketchat-livechat/client/views/app/tabbar/visitorInfo.html

...hat-oauth2-server-config/admin/client/views/oauthApp.html

packages/rocketchat-otr/client/views/otrFlexTab.html

packages/rocketchat-theme/assets/stylesheets/base.less

...etchat-theme/assets/stylesheets/utils/_colors.import.less

packages/rocketchat-ui-account/account/accountProfile.html

packages/rocketchat-ui-admin/admin/admin.html

packages/rocketchat-ui-flextab/flex-tab/tabs/userInfo.html

...ges/rocketchat-ui-sidenav/side-nav/createChannelFlex.html

...es/rocketchat-ui-sidenav/side-nav/createCombinedFlex.html

...es/rocketchat-ui-sidenav/side-nav/directMessagesFlex.html

...ages/rocketchat-ui-sidenav/side-nav/listChannelsFlex.html

...ages/rocketchat-ui-sidenav/side-nav/listCombinedFlex.html