Fixed cross-site scripting via svg file upload

[girishpanchal30]

Summary

In this PR I've filtered the SVG image content and removed the harmful code to fix the cross-site scripting vulnerability issue.

Check before Pull Request is ready:

• I have written a test and included it in this PR
• I have run all tests and they pass
• The code passes when running the PHP CodeSniffer
• Code meets WordPress Coding Standards for PHP, HTML, CSS and JS
• Security and Sanitization requirements have been followed
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Closes https://github.com/Codeinwp/neve-pro-addon#2842

[pirate-bot]

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[selul]

@girishpanchal30 please use this library instead for sanitization https://github.com/Codeinwp/optimole-wp/blob/master/composer.json#L59, you can check Optimole on how is used.

[girishpanchal30]

@selul Thank you for the suggestion, I've Implemented the library with the latest commit.

[pirate-bot]

🎉 This PR is included in version 2.10.37 🎉

The release is available on GitHub release

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