Fix gesture conflict preventing slider end action from being sent sometimes
Fix gesture conflict preventing slider end action from being sent sometimes

JIRA: https://openedx.atlassian.net/browse/MA-1651

appsembler/edx-app-ios,proversity-org/edx-app-ios,proversity-org/edx-app-ios,Ben21hao/edx-app-ios-new,Ben21hao/edx-app-ios-enterprise-new,Ben21hao/edx-app-ios-new,Ben21hao/edx-app-ios-new,edx/edx-app-ios,edx/edx-app-ios,proversity-org/edx-app-ios,proversity-org/edx-app-ios,edx/edx-app-ios,appsembler/edx-app-ios,Ben21hao/edx-app-ios-enterprise-new,edx/edx-app-ios,Ben21hao/edx-app-ios-new,Ben21hao/edx-app-ios-new,appsembler/edx-app-ios,appsembler/edx-app-ios,edx/edx-app-ios,proversity-org/edx-app-ios,proversity-org/edx-app-ios,edx/edx-app-ios,Ben21hao/edx-app-ios-enterprise-new,edx/edx-app-ios,Ben21hao/edx-app-ios-enterprise-new,Ben21hao/edx-app-ios-enterprise-new,appsembler/edx-app-ios