Upgrade scala.js example

examples/scalajs-multiproject/build.sbt

@@ -1,5 +1,7 @@
 import sbtcrossproject.CrossPlugin.autoImport.{crossProject, CrossType}
 
+ThisBuild / scalaVersion := "2.13.3"
+
 lazy val proto = (crossProject(JSPlatform, JVMPlatform).crossType(CrossType.Pure) in file("proto"))
   .settings(
     PB.targets in Compile := Seq(
@@ -19,7 +21,8 @@ lazy val protoJVM = proto.jvm
 lazy val client = (project in file("client"))
   .enablePlugins(ScalaJSPlugin)
   .settings(
-    name := "client"
+    name := "client",
+    scalaJSUseMainModuleInitializer := true
   )
   .dependsOn(protoJs)
 

examples/scalajs-multiproject/client/src/main/scala/Main.scala

@@ -1,7 +1,5 @@
-import scala.scalajs.js.JSApp
-
-object Main extends JSApp {
-  def main(): Unit = {
+object Main {
+  def main(args: Array[String]): Unit = {
     println(myproto.test.Test(foo = Some(13)).foo)
   }
 }

examples/scalajs-multiproject/project/plugins.sbt

@@ -1,7 +1,7 @@
-addSbtPlugin("com.thesamet" % "sbt-protoc" % "0.99.25" exclude ("com.thesamet.scalapb", "protoc-bridge_2.10"))
+addSbtPlugin("com.thesamet" % "sbt-protoc" % "1.0.0-RC2")
 
-libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin-shaded" % "0.9.0"
+libraryDependencies += "com.thesamet.scalapb" %% "compilerplugin" % "0.10.8"
 
-addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.0")
+addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "1.0.0")
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.28")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "1.2.0")