Alternative keybinding for i_toggle_animation

[internet-account]

Hi,

The default keybinding to toggle gif playback C-Space conflicts with IMEs, like for example ibus.
It's used to switch between different keyboard layouts or input methods, so pressing C-Space doesn't get send to sxiv.

It would be nice if there was a builtin alternative keybinding for i_toggle_animation. Maybe for example C-Enter? Or maybe something else.

{ ControlMask, XK_Return, i_toggle_animation, None },