now it is impossible to pass null in hide fun of dropdown

src/jsMain/kotlin/dev/inmo/jsuikit/types/Dropdown.kt

@@ -6,7 +6,7 @@ import dev.inmo.jsuikit.utils.*
 
 external interface Dropdown {
     fun show()
-    fun hide(delay: Boolean? = definedExternally)
+    fun hide(delay: Boolean = definedExternally)
     fun hide(delay: Milliseconds)
 }