Renamed qml_in_.. starting folders to qtquickview starting ones.
After the change this example follows a similar logic as other
declarative/examples/platform/android examples.
The change also shortened the path to address the Windows path
limitation of 260 characters.
Updated also documentation and manual tests.
Fixes: QTBUG-127067
Pick-to: 6.8
Change-Id: Ie564630e0f924d0b0694bf7c9d47931eab00b422
Reviewed-by: Nicholas Bennett <nicholas.bennett@qt.io>
Reviewed-by: Tinja Paavoseppä <tinja.paavoseppa@qt.io>