Reference to "Theme Customizer" in Customizer screen reader text

[celloexpressions]

We're ​moving away from the term "Theme Customizer" in favor of just "Customizer". We missed an instance of "Theme Customizer" in the aria-label attribute of the #customize-info section at the top of the Customizer (which says "you are customizing..."); the "Theme" part should be removed.

[studionashvegas]

29947 - removed instance of "Theme" from "Theme Customizer"

[studionashvegas]

Use this patch instead - I missed the "instance of Theme Customizer" in the commented section.

[celloexpressions]

Looks good, thanks @studionashvegas!

[ocean90]

Found two other places:

• trunk/src/wp-includes/theme.php#L1949​
• trunk/src/wp-admin/includes/template.php#L2032​

[tareq1988]

This one has all the replacement of theme customizer

[celloexpressions]

Awesome, 29947-customize-patch.2.diff​ takes care of all instances including bundled themes. Technically we should also always be capitalizing "Customizer" everywhere, although that's not as important.

[ocean90]

In 29903:

Customizer: Change instances of "Theme Customizer" to just "Customizer", as the Customizer isn't necessarily theme-specific.

Also capitalize "Customizer".
See also ​https://make.wordpress.org/core/2014/07/08/customizer-improvements-in-4-0/.

props studionashvegas, tareq1988.
fixes #29947.