Fix overly permissive regular expression range (#765)

## Description:

Add escaping to the `-` character to prevent it from specifying a
character range.

## Please complete the following:

- [x] I have added screenshots for all UI updates
- [x] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [x] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Original description

Potential fix for
[https://github.com/openfrontio/OpenFrontIO/security/code-scanning/6](https://github.com/openfrontio/OpenFrontIO/security/code-scanning/6)

To fix the issue, we will replace the ambiguous range `)-_` with an
explicit list of the intended characters. This ensures that the regular
expression is unambiguous and matches only the desired characters. We
will carefully review the rest of the regular expression to ensure no
other overly permissive ranges exist. The updated regular expression
will maintain the same functionality while being more precise.


_Suggested fixes powered by Copilot Autofix. Review carefully before
merging._


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **Refactor**
- Improved the clarity of character validation for safe strings,
ensuring consistent handling of special characters. No changes to
user-facing features or functionality.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

src/core/Schemas.ts

@@ -133,7 +133,7 @@ export const TeamSchema = z.string();
 const SafeString = z
   .string()
   .regex(
-    /^([a-zA-Z0-9\s.,!?@#$%&*()-_+=\[\]{}|;:"'\/\u00a9|\u00ae|[\u2000-\u3300]|\ud83c[\ud000-\udfff]|\ud83d[\ud000-\udfff]|\ud83e[\ud000-\udfff]|üÜ])*$/,
+    /^([a-zA-Z0-9\s.,!?@#$%&*()\-_+=\[\]{}|;:"'\/\u00a9|\u00ae|[\u2000-\u3300]|\ud83c[\ud000-\udfff]|\ud83d[\ud000-\udfff]|\ud83e[\ud000-\udfff]|üÜ])*$/,
   )
   .max(1000);