Recent changes in QDoc's output for QML type reference pages included
rearranging the `extra synopsis` element, i.e, read-only, since, and
deprecation information for properties.
As a result, the existing CSS for the offline documentation caused some
elements to be rendered on top of each other when using the qlitehtml-
based backend in Qt Assistant and Qt Creator.
To fix the layout, set a fixed width for the table elements that
are used to display the properties, property groups, and methods.
This change brings the style of QML reference pages closer to that
of C++ reference, where signatures also have a fixed width.
Fixes: QTBUG-136990
Change-Id: I72adbeaca46cd9dd99c54368257268dc8db6bfdc
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: David Boddie <david.boddie@qt.io>
(cherry picked from commit a9a68a87b9d54c528c6a9784095636ef54ac53be)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 8959c5055a4b6b14a5d5c310d10b3b6eb63f2333)
(cherry picked from commit 12e145a87570ae9a4a6fe4cb52c9adaf56ff29df)
