lib: add CTRL-backspace and CTRL-delete to delete whole words
lib: add CTRL-backspace and CTRL-delete to delete whole words

Fixes #7609
Closes #8191

Co-authored-by: Michal Grňo <d976224c37bcd13a636456711465d40549110ebc@gmail.com>

tekniklr/oh-my-zsh,tekniklr/oh-my-zsh