The change in the hotkey mechanism introduced in 317db5b04 does not allow
configuration via `settings.yml`. This commit adds that functionality.
Closes: #2898
We have built up detailed documentation of the *settings* and the *engines* over
the past few years. However, this documentation was still spread over various
chapters and was difficult to navigate in its entirety.
This patch rearranges the Settings & Engines documentation for better
readability.
To review new ordered docs::
make docs.clean docs.live
Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>