Update QItemLabel.json (#8562)
Update QItemLabel.json (#8562)

Delete line about webkit browser for line-clamp property. It is supported in Firefox and all modern browser: https://caniuse.com/css-line-clamp
rstoenescu/quasar-framework,rstoenescu/quasar-framework,quasarframework/quasar,quasarframework/quasar,pdanpdan/quasar,pdanpdan/quasar,pdanpdan/quasar,pdanpdan/quasar,rstoenescu/quasar-framework,quasarframework/quasar,quasarframework/quasar