Change record status: 
Project: 
Introduced in branch: 
8.x
Description: 

The configuration entity used for site-wide and personal contact pages is renamed from contact_category to contact_form. This inline with its usage.

All relates strings/menus are changed to use "Contact form"

Impacts: 
Site builders, administrators, editors
Module developers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done