Fix exporting picture via content-hub
It seems like commit f35a1a63 (issue#123 : some initial refactoring to async load some parts of the UI) breaks content-hub export. This MR fixes it by accounting for differences in scoping and referencing for components defined in Component {}
instead of as sub-component. In addition, this MR also fixes the whitespace problem in ViewFinderView.qml
which seems to be introduced in the same commit.
Fixes https://github.com/ubports/ubuntu-touch/issues/1352 (Regression: impossible to take a picture with content-hub).
Edited by Eran