Omit the version number from the import QtQuick which is generated by default

As far as I know, the version number for the import statements in Qt for MCUs doesn't have any meaning. 
Therefore, I'd like to suggest removing the default version number in the template code in the default project. (in fact, it seems that Qt6's default project doesn't have version number for the import QtQuick already)

The background of this suggestion is that in the customer training, the attenddees may ask the reason of the version numbers and saying there's no meaning can confuse them.
(Side note: I couldn't find the documentation which describes the meaning of the version number of modules in Qt for MCUs)