Mermaid Zoom in/out

[MAfarrag]

Mermaid diagrams does not zoom
mermaid diagrams does not have a zoom in/out buttons, and add and adding plugis to add zoom in/out functionality is not successfull at the moment, and the solution was to add custom JavaScript code to add the zoom in/out functionality

To Reproduce
Steps to reproduce the behavior:

1. try to zoom in/out in any diagram

Expected behavior
no Zooming in and no pan