`qt5-qtquickcontrols` and `qt5-qtgraphicaleffects` are needed, else qtwebbrowser shows a blackscreen on start. [ci:skip-build]: already built successfully in CI
`qt5-qtquickcontrols` and `qt5-qtgraphicaleffects` are needed, else qtwebbrowser shows a blackscreen on start. [ci:skip-build]: already built successfully in CI