Remarks with respect to v2.0.0

[c8y3]

These remarks are not really bugs in the documentation, but changes which will be needed to do for the future v2.0.0 release. They are discrepancies between the current documentation and the behaviour of the v2.0.0-beta-1:

• https://docs.dfir-iris.org/operations/modules/mod_management/: the + button is now a Add module button. The screenshot should be changed too
• https://docs.dfir-iris.org/operations/modules/mod_management/: in page Manage cases, there is no more Update tab. I guess, this is replaced by button Pipeline in the Case page?