Bug in pygbag test repl

[Two119]

so i just did a little experiment, i imported pygame and tried to run pygame.quit, but i accidentally missed a bracket and pressed enter so i had typed pygame.quit( and now it's just infinitely spouting lines, no matter what i do, even if i press ctrl+c or escape or type in the bracket and press enter, it just continues printing out underscores

pygame-web.github.io_showroom_pygbag.html.-.Google.Chrome.2023-09-22.17-52-53.mp4

[pmp-p]

the way readline emulation is implemented (js side) it is not easy to fix that.
it would be better (and maybe simpler) to switch to a full async rich repl like https://github.com/prompt-toolkit