Refactoring Kotlin code: fixing errors and improving style

It is necessary to revise the Kotlin fragment below, eliminating compilation issues and making the logic clearer. You need to replace the immutable list with a mutable one, correctly add a new element, implement iteration over the elements in reverse order without unnecessary synchronization, and ensure correct output.

val numbers = mutableListOf(1, 3, 5)

fun main() {
    numbers.add(7)
    numbers.forEachReversed { value ->
        if (value == 3) return@forEachReversed
        println(value)
    }
    println("Done!")
}

fun <T> List<T>.forEachReversed(action: (T) -> Unit) {
    this.asReversed().forEach { action(it) }
}