Version 2.8

Changelog: https://github.com/128931/ServerBackup/commits?author=128931
Summary: Huge code improvements/optimization and fixed a high severity vulnerability "Zip Slip" further info on it can be found at https://snyk.io/research/zip-slip-vulnerability / https://owasp.org/www-community/attacks/Path_Traversal / https://cwe.mitre.org/data/definitions/22.html