Merge pull request #60 from MakeNowJust-Labo/update/sbt-scalajs-1.8.0

Update sbt-scalajs, scalajs-compiler, ... to 1.8.0

Author: makenowjust

project/plugin.sbt

@@ -2,7 +2,7 @@ addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.33")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.3")
 addSbtPlugin("org.scoverage" % "sbt-scoverage" % "1.9.1")
 addSbtPlugin("com.github.sbt" % "sbt-ci-release" % "1.5.10")
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.7.1")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.8.0")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.1")
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.1.0")
 addSbtPlugin("org.portable-scala" % "sbt-scala-native-crossproject" % "1.1.0")