Mapping CTRL-E doesn't trigger functions

[freeo]

Description
Tried to map a function to ctrl-e - it doesn't work.
Tried both scroll_preview_half_page_down and select_next_page so I suppose it must be something with ctrl-e itself.

tried it on alacritty, kitty, ghostty
tried zsh and bash

Example
config.toml:

[keybindings.Channel]
scroll_preview_half_page_down = "ctrl-e" # doesn't work
scroll_preview_half_page_up = "ctrl-y"

Common vim bindings, ctrl-e is important...

Expected behavior
expected the preview to scroll down

Actual behavior
nothing

Environment
OS: arch linux

television 0.9.2
target triple: x86_64-unknown-linux-gnu
build: 1.83.0 (2025-01-10)

Additional context
Thank you!