### Is your feature request related to a problem? At the current moment, we don't have any specific rule for spaces after the negation operator. This means that the following cases are both accepted: - `!$test` - `! $test` ### Describe the desired solution No space should be enforced. For the implementation, it is possible to use the existing [SlevomatCodingStandard.Operators.NegationOperatorSpacing](https://github.com/slevomat/coding-standard/blob/master/doc/operators.md#slevomatcodingstandardoperatorsnegationoperatorspacing-), which allows to configure the number of expected spaces. ### Describe the alternatives that you have considered Either having the space or not, but not both cases accepted. ### Additional context _No response_ ### Code of Conduct - [X] I agree to follow this project's Code of Conduct