[jb] Ensure workspaces containing the Maven Wrapper start with it correctly configured

[felladrin]

Currently, when we start a workspace that contains a .mvn/wrapper/maven-wrapper.properties file, it should start with Maven configured to use the Maven Wrapper, but instead, it's starting configured to use the Bundled Maven version.

We need to fix it to work as described on IntelliJ IDEA Docs, where it says: "When you open an existing Maven project for the first time, IntelliJ IDEA searches for Maven wrapper defined in .mvn/wrapper/maven-wrapper.properties. If the Maven wrapper is found, it will be used as a Maven home path."