jenv's sbt plugin conflicts with nodenv

[Atry]

Suppose you installed both sbt and node in Homebrew, say, under /opt/homebrew/bin. When nodenv is initialized without jenv, the $PATH would be ~/.nodenv/shims/node:/opt/homebrew/bin, therefore node is resolved as ~/.nodenv/shims/node, which is expected.

Unfortunately, when jenv's sbt plugin is enabled, jenv will prepend the path containing sbt to $PATH, which is /opt/homebrew/bin, therefore the $PATH becomes ~/.jenv/versions/10.0/bin:/opt/homebrew/bin:/opt/homebrew/Cellar/jenv/0.5.4/libexec/libexec:~/.nodenv/shims:/opt/homebrew/bin while sbt is running. As a result, if sbt internally invoke node, it is resolved as /opt/homebrew/bin/node, which is unexpected.

This bug affects sbt Scala.js projects using both nodenv and jenv, because sbt will launch node to run tests in these projects.