Add privacy tab in profile settings (#26484)

app/controllers/settings/privacy_controller.rb

app/controllers/settings/profiles_controller.rb

app/models/user_settings.rb

app/models/user_settings/dsl.rb

app/models/user_settings/setting.rb

app/views/settings/preferences/other/show.html.haml

app/views/settings/privacy/show.html.haml

app/views/settings/profiles/show.html.haml

app/views/settings/shared/_profile_navigation.html.haml

config/locales/ar.yml

config/locales/ast.yml

config/locales/be.yml

config/locales/bg.yml

config/locales/ca.yml

config/locales/cy.yml

config/locales/da.yml

config/locales/de.yml

config/locales/en-GB.yml

config/locales/en.yml

config/locales/eo.yml