-Add new preset dimensions to the right click menu of the width and height fields in the editor.
-Change QSS stylesheets to properly handle tabs.
-Make tabs rectangular by default. For some reason, they had always been triangular.
--Bug fixes
-Incremental rendering times in the editor were wrong.
--Code changes
-Migrate to Qt6. There is probably more work to be done here.
-Migrate to VS2022.
-Migrate to Wix 4 installer.
-Change installer to install to program files for all users.
-Fix many VS2022 code analysis warnings.
-No longer use byte typedef, because std::byte is now a type. Revert all back to unsigned char.
-Upgrade OpenCL headers to version 3.0 and keep locally now rather than trying to look for system files.
-No longer link to Nvidia or AMD specific OpenCL libraries. Use the generic installer located at OCL_ROOT too.
-Add the ability to change OpenCL grid dimensions. This was attempted for investigating possible performance improvments, but made no difference.
This has not been verified on Linux or Mac yet.
-Add a new dialog for editing QSS stylesheets. Allow for saving, reloading and setting styles as default.
--Include a dark style with the installation called dark.qss.
--Also add support for themes such as Fusion.
--Resize some controls to better fit with the new style.
-Add an option to specify the number of random embers generated on startup. 1 is the minimum and the default.
--Bug fixes
-Properly enable/disable thread priority label in final render dialog in response to enable/disable of the OpenCL checkbox.
-Remove all inline stylesheets.
-Show xaos spinners with 6 decimal places.
--Code changes
-Remove redundant comparisons to nullptr, use ! instead;
-Give some controls valid names instead of the auto generated ones.
-DoubleSpinBoxTableItemDelegate.h: Add virtual keyword to overridden functions.
