Remove local raster tile option
Remove the old -local CLI option for using locally downloaded raster tiles.
As we will start relying on vector tiles (for example remove the "What's here" menu and rely on clickable POIs and maybe later on pull things like country codes for locations directly from tile data instead of relying on libgweather's coarse-grained triangulation based on weather station positions) we should probably remove this option to prepare for making vector the default and only option (even though we might eventually regain satellite image support).
Also not sure if this actually works in Flatpaks, and eventually we might implement a more "official" way to download maps for offline usage (#414 #416)
Edited by Marcus Lundblad