Breaking: #64070 - Removed global variable WEBMOUNTS

See Issue #64070

Description

The global variable WEBMOUNTS has been removed, as the same data from the WEBMOUNTS can always be fetched via $GLOBALS['BE_USER']->returnWebmounts().

Impact

The variable $GLOBALS['WEBMOUNTS'] will no longer be filled.

Affected installations

Any installation using $GLOBALS['WEBMOUNTS'] directly within an extension will produce a wrong result.

Migration

Replace all occurrences of $GLOBALS['WEBMOUNTS'] with $GLOBALS['BE_USER']->returnWebmounts().