Bulk Edit: Show decoded post title in list.

[dmsnell]

Trac ticket: Core-61833

Previously, post titles in the bulk edit list were showing HTML character references (entities) in the displayed output when they should have been rendering the decoded values. This is because WordPress was double-encoding the post titles in the hidden "inline data" through a call to esc_textarea().

In this patch, the post title value is first decoded before being passed into esc_textarea() to avoid the double-encoding. This preserves the proper post title render in the Bulk Edit component.

Before Patch	After Patch