Pl3xMap

fix zoom speed issue on linux with chrome based browsers (#99)

starting with chrome v109 on linux they doubled the scrollwheel delta, so now the browser scrolls too fast. this was an intentional change and people are happy with it, however it create a lot of unintentional bugs. one bug is that leaflet now zooms in/out too fast again (it jumps 2 zoom levels instead of 1). other bugs include scrolling content way too quickly, like a select box scrolling so fast you miss some options (it goes from 1-4 to 8-11 with one mousewheel tick lol)

anyways, long story short is the fix in leaflet from years ago needs to be removed. until then we can workaround it by doubling the ratio in the map options on our end when we detect linux+chrome combination.