Similar to #1716, but for the landuse layer's landcover related tags.

• What did you see? At mid-zooms where we source landuse layer contents from OSM from ~ zoom 8 to zoom 13 we see relatively large file size % from the landuse layer compared to other layers.
• What did you expect to see? Less file size, by dropping properties and reducing kind precision for "green" and other natural=* "landcover" related landuse kinds. We've also talked about "buffer, merge, shrink" like we now do with the buildings layer.

Possibly also related:

• Adding grass green areas: Add grassland landuse polygon near Martinez, California (and other landuse) #1259
• Reducing kind precision: Remap landuse kinds at mid and low zooms to improve merging #1779
• Demoting some landuse down: Demote some early landcover down a few zooms #1794
• Unifying wood versus forest: unify landuse=forest and natural=wood #1397
• TagInfo: https://taginfo.openstreetmap.org/keys/natural?filter=ways#values