Replace OSM rastered tiles with tiles generated from SVG in timezone
- Replace OSM rastered tiles with tiles generated from SVG in timezone
Previously the Timezone component was using the standard tiles provided by OSM; however, these included too many details which both made it impossible to zoom in and took too much disk space, making us unable to provide good zoom levels. Instead, we now download the top-most tile in SVG format, and then convert it to png tiles (since QML's map only supports that format). This takes less space and is able to provide more zoom levels with much less clutter. Finally, there's a small rework of the suggestem zoom function so that it does not zoom beyond the maximum zoom level.