fix(QResizeObservable): Guard object event removal
fix(QResizeObservable): Guard object event removal

quasarframework/quasar,fsgiudice/quasar,rstoenescu/quasar-framework,quasarframework/quasar,rstoenescu/quasar-framework,quasarframework/quasar,fsgiudice/quasar,pdanpdan/quasar,rstoenescu/quasar-framework,pdanpdan/quasar,pdanpdan/quasar,pdanpdan/quasar,quasarframework/quasar,fsgiudice/quasar