A11y: Heading Structure in Profile Fields > Add New Field and Edit Field

[mercime]

WP 4.4-trunk, BP 2.4-trunk

Legend:
(x) requires patch in #6581
(-) revised
(o) no change

Headings:
(x) <h2> Add New Field -> <h1> Add New Field
(-) <h3> Description -> <h2> Description
(-) <h3> Type -> <h2> Type
(o) <h3> Please enter options for this Field:
(-) <h3> Submit -> <h2> Submit
(-) <h3> Requirement -> <h2> Requirement
(-) <h3> Member Types -> <h2> Member Types
(-) <h3> Visibility -> <h2> Visibility

Patch attached.

[DJPaul]

@mercime you can commit this now for 2.5; thanks.

[mercime]

In 10361:

A11y: Adjust heading structure in Profile Fields > Add New Field
and Edit Field.

Fixes #6701. See #6581.