qt5: Remove "5" from class names in qt5 VCL plugin

Rename classes for the qt5 VCL plugin to no longer
contain the Qt version number "5" in them, e.g.
"Qt5Widget" -> "QtWidget".

Also, adapt some variable names and comments
accordingly.

The code will be used for an upcoming qt6 VCL plugin
as well, so a "Qt" prefix fits better than a "Qt5"
one.

Renaming the headers and source files will be done
in a separate commit to make tracking git history easier.

Change-Id: Idf422f82ca9dafbb70e9a64de9c8cfc4cc8c0909
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/122805
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>

0 files changed, 0 insertions, 0 deletions