Automatically add the "Add translation" post menu button when content localization is enabled

[nat (Natalie T)]

@Moin

Did you add the addTranslation button to the post menu site setting?

@Moin

Did you add the translation button to the post menu site setting?

@asa

Thank you, I cannot see that on my end

I am using 3.6.0.beta1-dev f7238c188e

(and more…)

Many users have tripped over not seeing the post menu item when enabling content localization, so we should automatically add it when the site setting is enabled.

[nat (Natalie T)]

This should be done here

FEATURE: Automatically add 'Add Translation' post menu when content localization enabled