Make it client-side only

[Craluminum2413]

All of these things can be done on the client side. Otherwise, Waypoint Extensions mod does exactly the same

[egocarib]

I've discussed my feelings about this on the discord. The short story is:

• Yes, it can be done client side only
• I won't do it client side only right now. Maybe at a future undetermined time if I feel like it.

The current client/server implementation is cleaner than what the mod would have to look like if it were client side only, and I'd lose some features that I really like (such as suppressing chat messages when waypoints are created - popping chat open constantly is immersion-breaking IMO, especially on singleplayer).

(technically the chat thing could be overcome but it would require maintaining an entirely separate map layer unique to the mod that doesn't integrate with the games own waypoint marker system)