Fix doc links to removed client component (see #11390) (rebased onto develop)



This is the same as gh-446 but rebased onto develop.

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This PR fixes broken links that were a result of removing the ``client`` component in https://github.com/openmicroscopy/openmicroscopy/pull/1394. To verify that it is ok to merge, make sure that http://hudson.openmicroscopy.org.uk/view/2. Stable/job/OMERO-docs-merge-stable is green.

This will be rebased onto develop together with the corresponding PR that removes ``client``.