gui: replace several cast from float(text) to Qt.locale().tofloat() to make it safer.

src/tomwer/app/nabuapp.py

src/tomwer/gui/edit/nxtomoeditor.py

src/tomwer/gui/edit/tests/test_nx_editor.py

src/tomwer/gui/reconstruction/axis/AxisSettingsWidget.py

src/tomwer/gui/reconstruction/axis/CalculationWidget.py

src/tomwer/gui/reconstruction/axis/ControlWidget.py

src/tomwer/gui/reconstruction/nabu/castvolume.py

src/tomwer/gui/reconstruction/nabu/nabuconfig/ctf.py

src/tomwer/gui/reconstruction/nabu/nabuconfig/phase.py

src/tomwer/gui/reconstruction/nabu/volume.py

src/tomwer/gui/reconstruction/normalization/intensity.py

src/tomwer/gui/utils/step.py

src/tomwer/gui/utils/unitsystem.py

src/tomwer/gui/visualization/sinogramviewer.py