[ci skip] UX guide: Update animation guidance to 100ms
[ci skip] UX guide: Update animation guidance to 100ms

jirutka/gitlabhq,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,jirutka/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,dreampet/gitlab,dreampet/gitlab,openwide-java/gitlabhq,t-zuehlsdorff/gitlabhq,LUMC/gitlabhq,LUMC/gitlabhq,dplarson/gitlabhq,htve/GitlabForChinese,dreampet/gitlab,iiet/iiet-git,dplarson/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,dplarson/gitlabhq,openwide-java/gitlabhq,htve/GitlabForChinese,iiet/iiet-git,LUMC/gitlabhq,stoplightio/gitlabhq,dreampet/gitlab,darkrasid/gitlabhq,mmkassem/gitlabhq,jirutka/gitlabhq,axilleas/gitlabhq,darkrasid/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,darkrasid/gitlabhq,t-zuehlsdorff/gitlabhq,dplarson/gitlabhq,darkrasid/gitlabhq,stoplightio/gitlabhq,mmkassem/gitlabhq,htve/GitlabForChinese,axilleas/gitlabhq,mmkassem/gitlabhq,LUMC/gitlabhq,openwide-java/gitlabhq