Update class-mainwp-utility.php

[giuscia]

some sites that use something like this as a domain:

prefix-www.mydomain.it
or
mystrangedomainwww.it

in these cases, MainWP always removes the www. breaking my domain as follows:

prefix-www.mydomain.it => prefix-mydomain.it
mystrangedomainwww.it => mystrangedomainit

my proposal solves the problem

All Submissions:

• Have you followed the MainWP Contributing guideline?
• Does your code follow the WordPress' coding standards?
• Have you checked to ensure there aren't other open Pull Requests for the same update/change?

Changes proposed in this Pull Request:

Closes # .

How to test the changes in this Pull Request:

Other information:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your changes, as applicable?
• Have you successfully run tests with your changes locally?

Changelog entry

Enter a summary of all changes on this Pull Request. This will appear in the changelog if accepted.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

See analysis details on SonarCloud