[hotfix] dashboard widget resize is broken (#3330)
[hotfix] dashboard widget resize is broken (#3330)

blame https://github.com/apache/incubator-superset/pull/3315
timifasubaa/incubator-superset,dmigo/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset,alanmcruickshank/superset-dev,zhouyao1994/incubator-superset,airbnb/superset,SingTel-DataCo/incubator-superset,alanmcruickshank/superset-dev,airbnb/caravel,massgov/incubator-superset,mistercrunch/panoramix,massgov/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,dmigo/incubator-superset,FrederichCheng/incubator-superset,airbnb/superset,timifasubaa/incubator-superset,mistercrunch/panoramix,airbnb/superset,FrederichCheng/incubator-superset,timifasubaa/incubator-superset,SingTel-DataCo/incubator-superset,dmigo/incubator-superset,airbnb/caravel,apache/incubator-superset,massgov/incubator-superset,mistercrunch/panoramix,apache/incubator-superset,alanmcruickshank/superset-dev,dmigo/incubator-superset,airbnb/caravel,timifasubaa/incubator-superset,apache/incubator-superset,alanmcruickshank/superset-dev,FrederichCheng/incubator-superset,FrederichCheng/incubator-superset,SingTel-DataCo/incubator-superset,mistercrunch/panoramix,apache/incubator-superset,SingTel-DataCo/incubator-superset,massgov/incubator-superset,airbnb/superset