[ticket/12005] Remove PM popup setting from user preferences
[ticket/12005] Remove PM popup from converter
[ticket/12005] Remove PM popup UCP module
[ticket/12005] Remove PM popup
[ticket/12005] Remove language vars used by PM popup
[ticket/12005] Delete templates files
[ticket/12005] Remove PM popup module from DB
Revert "[ticket/12005] Remove PM popup module from DB"

This reverts commit 25dcbdd7a6ad3591b1adc18e9be15815e2e7bed0.
[ticket/12005] Remove PM popup module from DB