PRE/CODE tag overflow issue on the plugin details page

[Simek]

There is an issue with PRE/CODE tags on the plugin details page.

The problem exist in the description of some plugins -example:
"CSS3 Image & Text Overlay" plugin.

Text inside PRE/CODE is not wrapped and is displayed over the information on the right side.

The solution is use CSS property "overflow: auto;" for PRE tag.

[nacin]

In [18523]:

Overflow:auto for pre tags in the plugin information popup. props Simek, fixes #16902.