Update images in docs/plugins/vtiger.rst in branch 5.2

[RCheesley]

Description

The user interface in docs/plugins/vtiger.rst has changed, and the images in this documentation need to be updated to reflect the new UI.

Website page

https://docs.mautic.org/en/7.0/plugins/vtiger.html

Suggestions

1. Create a screenshot that highlight the "Yes" Active switch, which you can find in the Enabled/Auth tab. Add the screenshot in the "Configure the Vtiger CRM Plugin" section for point 1.

   Please see this image file as reference.

2. Change the wording of point 1 as follow:

   - 1. Set the *Active* switch to **Yes**.
   + 1. Toggle the **Active** switch button to enable the Plugin. 

3. The following images are referenced and need to be reviewed and updated as needed:

   • docs/plugins/images/vtiger-mautic.png
   • docs/plugins/images/vtiger-mautic-features.png

Important notes

• Please follow the instructions on the website page to navigate Mautic.
• Please use the light mode to take the screenshots.
• Please zoom out bit by bit until you can capture the whole component if the component occupied the screen or need to be scrolled.
• Please use red color if you need to highlight (create a box for) the components.
• Please save the images in .png.
• Always test and preview your changes locally to ensure that the images are rendered properly.

[beneyalraj]

@adiati98 @RCheesley
I would like to work on this issue, Could you please assign it to me