Test Cutter high DPI support

[karliss]

Make the testing scenarios based on https://gist.github.com/karliss/3e2da4c372ea9c49fab8652bfae0c7b8

When testing if possible use latest Qt. Include Qt version in test results. Not required but it might be useful to compare the results with Qt version used for building Cutter releases.

• Prepare list of custom drawn widgets that need to be checked during testing
• Prepare a description based on document linked above, write down parts of software version and other configuration that needs to be included in test results
• Create a test table
• write down list of common/expected answers for configuration, compatibility level, errors, enabled compatibility mode
• Test
  • Windows
  • Linux
  • macOS

[karliss]

Custom drawn widgets

• ProgressIndicator
• SvgIconEngine used for icons in classsview
• ColorPicker used in theme editor
• ColorOptionDelegate - theme editor color list
• GraphView
• HexWidget
• VisualNavbar
• Disassembly widget arrows