[3.13] gh-111201: Speed up paste mode in the REPL (#119341) (GH-119432) (#119439)

(cherry picked from commit e6572e8f98d33994d2d0dd3afa92a2a72ee642a9)

Also includes:

* gh-111201: Use calc_complete_screen after bracketed paste in PyREPL (GH-119432)
(cherry picked from commit 14b063cbf1bb11a489d04a31f277edba0fc8893c)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Lysandros Nikolaou <lisandrosnik@gmail.com>