fixed offset y of tooltip and legend in waterfall plot
fixed offset y of tooltip and legend in waterfall plot


Former-commit-id: 24b121f14e7fae79b8aea939f5b79ad8e0e6ec5c
cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,alisman/cbioportal-frontend,cBioPortal/cbioportal-frontend,alisman/cbioportal-frontend