$args documentation for WP_Customize_Control::__construct() and WP_Customize_Manager::add_control() don't match

[marekdedic]

I believe the $args parameter should be the same for both methods, given how add_control() just calls the constructor.

​https://developer.wordpress.org/reference/classes/wp_customize_control/__construct/

​https://developer.wordpress.org/reference/classes/wp_customize_manager/add_control/

[hAmpzter]

Updated WP_Customize_Manager::add_control args-documentation to be equal to WP_Customize_Control::construct

[SergeyBiryukov]

In 47364:

Docs: Add a reference to WP_Customize_Control::__construct() for information on accepted arguments in WP_Customize_Manager::add_control().

Synchronize the documentation between two places, use WP_Customize_Control::__construct() as the canonical source.

Props hAmpzter, marekdedic, SergeyBiryukov.
Fixes #48343.

[SergeyBiryukov]

In 47382:

Docs: Add a @see reference to WP_Customize_Control::__construct() in child class constructors.

Follow-up to [47363], [47364].

See #48343, #48348.