etienne02

Fixes colliding _close in the thread (that collide with Thread._close()) and make the application not closing properly. Fix some deprecated method usages in threads (getName(), setName(), ... are replaced by...

### What happened? When [dependabot tried to upgrade the plugin to 2.1.0 ](https://github.com/intellij-dlanguage/intellij-dlanguage/pull/1017)the cicd failed with error `No IntelliJ Platform dependency found ` After investigation, I found that this is...