The new \tm command appends a trademark symbol and links to the
trademark documentation page if `navigation.trademarkspage` variable
is set. As we have such a page in qtdoc repository, set the variable
in the global configuration. This works as all Qt module docs have a
dependency to the `qtdoc` documentation set.
Pick-to: 6.8
Task-number: QTBUG-124393
Change-Id: Iabc6e7e5afe5114eac79947f0feb512458f1c4da
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>
(cherry picked from commit 429f565017f7213a91eb0cf43966b2148e0bb651)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
3b4a7d4881