Do not show extension mode selectors when not on edit page
Do not show extension mode selectors when not on edit page

The mode selectors of the extension also showed up when clicking the
'New File' link when viewing a wiki page. This should not be the case
and therefore this has been removed

bauglir/chiliproject_side_by_side_wiki_edit,bauglir/chiliproject_side_by_side_wiki_edit