[ENH] PluginDiagram: Prevent conversion of HTML Entities present in the names of the galleries in Wiki Page
Description
Since the Html entities were interpreted, so I added a code to prevent the HTML entities from being decoded.
Steps to test
A few galleries must exist first, then add {diagram} in the wiki page.
Expected result
HTML entities in galleries names must not change.
Edited by Adrien Mbuya Maloba