More string trimming capabilities about stdlib HOT 3 OPEN

@target(erlang)
pub fn trim_codepoints(
  string: String,
  direction: Direction,
  codepoints: String,
) -> String {
  let codepoint_ints =
    codepoints
    |> to_utf_codepoints
    |> list.map(utf_codepoint_to_int)

  do_trim_codepoints(string, direction, codepoint_ints)
}

@target(erlang)
@external(erlang, "string", "trim")
pub fn do_trim_codepoints(
  string: String,
  direction: Direction,
  codepoints: List(Int),
) -> String

@target(javascript)
pub fn do_trim_codepoints(
  string: String,
  direction: Direction,
  codepoints: List(Int),
) -> String {
  todo
}