[Feature] Support link debug/release for ScalaJS

[KristianAN]

Support link debug and release from bloop. this is not exposed through BSP, so there will need to be some bespoke solution or implement support in BSP.

scala-cli has it's own solution for this. Some files that might be of interest there: https://github.com/VirtusLab/scala-cli/blob/63db2b1a9c951897dd2b3cd8de01e53024317a76/modules/cli/src/main/scala/scala/cli/commands/package0/Package.scala#L947

https://github.com/VirtusLab/scala-cli/blob/main/modules/options/src/main/scala/scala/build/options/ScalaJsOptions.scala