QDoc markup following the \tabcontent macro should start a new
paragraph. As HTML-specific macros are injected directly into
the output, QDoc's doc parser is not aware that the macro should
start a new paragraph.
Turn the macros into generic, non-format-specific macros,
expanding to \div and \enddiv commands that wrap the tab
content.
Pick-to: 6.9 6.8 6.5
Change-Id: Ie8313af391b1a38ef74592acac3198fef5b7b310
Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io>