Apply Q_DISABLE_COPY_MOVE macro in some widgets

[Petross404]

Your checklist for this pull request

• I've read the guidelines for contributing to this repository
• I made sure to follow the project's coding style
• I've updated the documentation with the relevant information (if needed)

Detailed description

This PR applies the Q_DISABLE_COPY_MOVE macro in order to delete the copy and move constructors of some widgets.

Test plan (required)

No visual or other changes. Just compile and use Cutter normally.

[XVilka]

In file included from /home/runner/work/cutter/cutter/src/widgets/ColorThemeComboBox.cpp:1:0:
/home/runner/work/cutter/cutter/src/widgets/ColorThemeComboBox.h:12:43: error: ISO C++ forbids declaration of ‘Q_DISABLE_COPY_MOVE’ with no type [-fpermissive]
     Q_DISABLE_COPY_MOVE(ColorThemeComboBox)
                                           ^
/home/runner/work/cutter/cutter/src/widgets/ColorThemeComboBox.h:12:43: error: expected ‘;’ at end of member declaration
[141/182] Building CXX object src/CMakeFiles/Cutter.dir/common/ColorThemeWorker.cpp.o

[Petross404]

I am out of ideas. Ok, abstract classes can't make use of this macro but what about the rest?

Is it because the destructors aren't default?

 In file included from /home/runner/work/cutter/cutter/build/src/Cutter_autogen/include/ui_ColorThemeEditDialog.h:26:0,
                 from /home/runner/work/cutter/cutter/src/dialogs/preferences/ColorThemeEditDialog.cpp:2:
/home/runner/work/cutter/cutter/src/widgets/ColorThemeListView.h:23:43: error: ISO C++ forbids declaration of ‘Q_DISABLE_COPY_MOVE’ with no type [-fpermissive]
     Q_DISABLE_COPY_MOVE(ColorThemeListView)

[xarkes]

I guess, but that's not a problem, is it? Simply don't apply the macro there?

[Petross404]

I guess, but that's not a problem, is it? Simply don't apply the macro there?

I will look into this in the following days. Thanks