Ignore chat triggers for interactive ban reason

[Rushaway]

Description

Prevent chat triggers to be used a ban reason when plugin is waiting for custom reason

Motivation and Context

Follow SourceMod behaviour pushed on 363b4b6 Credits to @Rainyan

How Has This Been Tested?

Works like a charm.

Screenshots (if appropriate):

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have read the CONTRIBUTING document.