Add support for Approve plugin

[macin]

Hi, please add a support for Approve plugin ttps://www.dokuwiki.org/plugin:approve

[nomadjimbob]

This plugin appears to make a fair few page changes that Mikio does not take into account when I initially created the basic template. I will look into how to best support this and other plugins that may make these kind of changes in future so I don't need to write support for each one