Add columns to store project creation settings

Add project creation level column in groups
 and default project creation column in application settings

Remove obsolete line from schema

Update migration with project_creation_level column existence check

Rename migrations to avoid conflicts

Update migration methods

Update migration method

Add a supporting code to separate groups#show
and groups#details which is required for the
proper implementation of the Group Overview
content and Security Dashboard option for it

In order to have an accurate date about the last activity of a User
we need to update the last_activity_on field when the User is visiting
some basic pages of GitLab like pages related to Dashboards, Projects,
Issues and Merge Requests

In order to let users' sorting preferences transfer between devices, we
save the preference for issues and MRs (one preference for issues, one
for MRs) in the backend inside the UserPreference object

[master] Resolve "Personal access token with only `read_user` scope can be used to authenticate any web request"

See merge request gitlab/gitlabhq!2583

Enables frozen string for the following:

* app/controllers/*.rb
* app/controllers/admin/**/*.rb
* app/controllers/boards/**/*.rb
* app/controllers/ci/**/*.rb
* app/controllers/concerns/**/*.rb

Partially addresses #47424.

This whitelists all existing offenses for the various CodeReuse cops, of
which most are triggered by the CodeReuse/ActiveRecord cop.