refactor(dom): update xstream devDep to v7.0
refactor(dom): update xstream devDep to v7.0

staltz/cycle,usm4n/cyclejs,usm4n/cyclejs,cyclejs/cyclejs,cyclejs/cycle-core,cyclejs/cyclejs,maskinoshita/cyclejs,feliciousx-open-source/cyclejs,feliciousx-open-source/cyclejs,maskinoshita/cyclejs,maskinoshita/cyclejs,cyclejs/cycle-core,maskinoshita/cyclejs,ntilwalli/cyclejs,ntilwalli/cyclejs,cyclejs/cyclejs,feliciousx-open-source/cyclejs,cyclejs/cyclejs,usm4n/cyclejs,staltz/cycle,ntilwalli/cyclejs,usm4n/cyclejs,ntilwalli/cyclejs,feliciousx-open-source/cyclejs