MultitaskingView: Allow workspace switch animation to be interrupted

[leolost2605]

First step towards #1202

Remaining are multitasking view open and close and while on the desktop workspace switch but those require the cancelling fixes and are left to follow up PRs.

TODO:

• Some calculation corrections

[lenemter]

This branch is bugged after merging #2164 :/

[leolost2605]

@lenemter can you describe what happens? It seems to work fine for me :/

[lenemter]

This bug happens when you interrupt workspace switch animation while switching to the last workspace

2024-12-20.16-44-59.mp4

[leolost2605]

This should be ready now.
Cancelling is now also much more predictably. We cancel if

• We haven't moved far enough and our velocity is to low
• We are going backwards with enough velocity

This fixes some unintuitive behavior like when switching to a new workspace and you're already there but you decide to go back and swipe fast backwards it won't cancel.

[leolost2605]

I just realized this somehow cancels multitasking view open/close even though it shouldn't...
I'll look into it :)

[leolost2605]

Ok it's fixed now so ready again :)

[lenemter]

This looks weird with touchegg backend but there's nothing we can do with it. Looking forward using this with touchpad backend