Alacritty extended keys. In tmux > neovim <C-2>, not <C-Space>

alacritty.toml

[keyboard]
bindings = [
    { key = "0", mods= "Control", chars = "\U0000001b[48;5u" },
    { key = "1", mods= "Control", chars = "\U0000001b[49;5u" },
    { key = "2", mods= "Control", chars = "\U0000001b[50;5u" },
    { key = "3", mods= "Control", chars = "\U0000001b[51;5u" },
    { key = "4", mods= "Control", chars = "\U0000001b[52;5u" },
    { key = "5", mods= "Control", chars = "\U0000001b[53;5u" },
    { key = "6", mods= "Control", chars = "\U0000001b[54;5u" },
    { key = "7", mods= "Control", chars = "\U0000001b[55;5u" },
    { key = "8", mods= "Control", chars = "\U0000001b[56;5u" },
    { key = "9", mods= "Control", chars = "\U0000001b[57;5u" },
]