Warn about variables with spaces in Camunda context #34
Description
What should we do?
Warn about variables with spaces, optionally allow to escape them with backticks as a quickfix.
Why should we do it?
Variables with spaces are proper FEEL so they are not detected by the parser, but we can detect them in feel-lint before the deployment is rejected.
Related to https://camunda.slack.com/archives/C0693F1NFK5/p1741195444457189