Enable panning inertia so panning feels smoother

[corradio]

Describe the bug
On Google Maps, after the map keeps panning for a short while after having been dragged (a so-called "inertia" effect).
This makes the experience of scrolling the map easier as it enables to reach far-away areas faster.
The setting has been disabled here. Would be great to re-enable it!
More info about the maxSpeed option here: https://maplibre.org/maplibre-gl-js/docs/API/type-aliases/DragPanOptions/

To Reproduce
Steps to reproduce the behavior:

1. Open app
2. Drag map and release
3. Map immediately stops being dragged

Expected behavior
Map should continue panning for a short while.

[VIKTORVAV99]

I think that was disabled due to it making the exchange arrows behave all weird. But I've been exploring an alternate way to render them which should allow us to enable this setting.

There was just some issues with scaling that I need to figure out with the new method.