Summary:
rPd6bce34a5db1a838a988440f09f7728747c9e067 failed to replace all occurrences of `$this->getApplicationURI('update/'.$conpherence->getID().'/')` with `$this->getApplicationURI('edit/'.$conpherence->getID().'/')`. Thus editing a Conpherence room on mobile crashes due to using an old invalid path.
Closes T15513
Test Plan:
* Run `grep -r "update/" . | grep onpherenc` vs `grep -r "edit/" . | grep onpherenc` and read rPd6bce34a5db1a838a988440f09f7728747c9e067
* Go to a Conpherence room in mobile view and select "Edit Room"
* Go to a Conpherence room in desktop view and select "Edit Room"
Reviewers: O1 Blessed Committers, valerio.bozzolan
Reviewed By: O1 Blessed Committers, valerio.bozzolan
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15513
Differential Revision: https://we.phorge.it/D25879