Fix Typos

This is the first Issue requested in the following comment.
https://github.com/ESAPI/esapi-java-legacy/pull/850#issuecomment-2282343202

> One PR to only correct typos in public documentation (so .md files, comments in .properties / configuration files, and Javadoc.

> Every PR that you submit needs to have a corresponding GitHub issue created for it and the PR should reference that issue.