- Move KSyntaxHighlighting::Theme::TextStyles into enum class KSyntaxHighlighting::TextStyles. There is a "TODO KF6" in syntax-highlighting/src/lib/theme.h.
- Remove KTextEditor::DefaultStyles (ktexteditor's attribute.h) and reuse KSyntaxHighlighting::TextStyles instead (note, that the order of the enum changes a bit, but due to the BIC changes, this should be OK anyways.