InputText: Crash when selecting end of text by mouse

[stergiotis]

stacktrace

#0  0x00005612e75b7e2a in ImStb::stb_text_locate_coord (str=str@entry=0x5612ee05fe00, x=<error reading variable: That operation is not available on integers of more than 8 bytes.>, 
    y=<error reading variable: That operation is not available on integers of more than 8 bytes.>) at imzero_client_cpp/imgui_skia/../imgui_skia/./imgui_w_hooks_1.91.9_wip/imstb_textedit.h:463
463        if (STB_TEXTEDIT_GETCHAR(str, i+r.num_chars-1) == STB_TEXTEDIT_NEWLINE)