improvement: use different `volumeThreshold` for different algorithms

[WofWca]

Margins are already on the list. https://github.com/WofWca/jumpcutter/blob/6f82c4494e6bcbf5ed1b4854410f0921a3a01d8a/src/settings/defaultSettings.ts#L60-L68

Also maybe silenceSpeed also needs to be added there, although it's not used in the cloning algorithm yet.

The reason I think we need this is because with the cloning algorithm you don't really need to set volumeThreshold as low as possible because marginBefore actually works properly there without any stretching.

[WofWca]

Oh BTW maybe we should simply make the one setting a multiplier of another setting? E.g. when you switch to the cloning algorithm, just multiply margins by two.