Change plugin review title tags

[jonoaldersonwp]

The <title> tag content on plugin review pages (like ​https://wordpress.org/support/topic/works-as-advertised-704/) takes the format: %%review_title%% | WordPress.org.

This should be altered to %%review_title%% - [%%plugin_name%%] Review | %%site_name%%.

E.g., <title>Works as advertised | WordPress.org</title> should be <title>Works as advertised - [Akismet Anti-Spam] Review | WordPress.org</title>.

[dufresnesteven]

This diff also supports adding the title to theme reviews (which was a problem with the first diff.)

[dufresnesteven]

Add a check before updating title text.

[dufresnesteven]

In 10248:

Support: Update title for theme & plugins reviews.

Props jonoaldersonwp

Fixes: #5415