Mobile: Update PDF.JS

Description

Update pdf.js viewer to version 2.5.207.

Add new sysconfig flag ZK_USE_PDF_JS_VIEWER (default to false) so implementer can choose to use the pdf.js viewer for desktop as well.

Environment

None

Assignee

Heng Sin Low

Reporter

Heng Sin Low

Labels

None

Tested By

None

Components

Priority

Major
Configure