fix intellij adding 2.12 stdlib on classpath due to root project

Author: neko-kai

build.sbt

@@ -1824,6 +1824,7 @@ lazy val `idealingua-v1` = (project in file("."))
       "-XDignore.symbol.file"
     ),
     crossScalaVersions := Nil,
+    libraryDependencies := Nil,
     ThisBuild / organization := "io.7mind.izumi",
     ThisBuild / publishTo := {
       // https://github.com/sbt/sbt/issues/8131

project/Deps.sc

@@ -224,6 +224,7 @@ object Idealingua {
 
       final val rootSettings = Defaults.SbtMetaRootOptions ++ Defaults.RootOptions ++ Seq(
         "crossScalaVersions" := "Nil".raw,
+        "libraryDependencies" := "Nil".raw,
         "organization" in SettingScope.Build := "io.7mind.izumi",
         "publishTo" in SettingScope.Build :=
           """{