[MC-279274] Blocks that can't be adjacent to cactus are inconsistent

Cactus cannot be placed next to several blocks, despite these blocks not touching the edge of their block, and being identical or extremely similar to blocks that can be adjacent to cactus.

Block Type	Can be Adjacent	Cannot be Adjacent
Rod Blocks	End Rods	Lighting Rods, Chains, Bamboo, Disconnected Panes, Bars, Walls & Fences
Flat Blocks	Repeaters, Comparators, Carpets, Snow Layers (any number), Frog Eggs, Lilly Pads, Glow Lichen, Resin Clumps, Wildflowers, Cherry Blossoms, Leaf Litter	Skulk Veins, Horizontal Trapdoors, Pressure Plates
Edge Blocks	Ladders, Vines, Glow Lichen, Resin Clumps	Vertical Trapdoors, Doors, Wall Banners, Wall Signs
Small Blocks	Heads, Candles, Sea Pickles, Heavy Core	Conduits, Flower Pots, Bamboo Shoots, Turtle Eggs, Amethyst Crystals, Dripstone, Lanterns
Almost Full Blocks	Chorus Stalks	Sniffer Eggs, Chests, Bells, Cakes, Grindstones, Decorated Pots, Anvils, Cactus
Fluids	Water (any level)	Lava (any level)
Other Partial Blocks	Dripleaf, Twisting Vines, Hanging Vines	Brewing Stands, Standing Banners
Miscellaneous Surprises	Chorus Flowers, Scaffolding	Web, Signs, Coral

I recommend making everything in the right column able to be adjacent (in some cases potentially dependent on orientation) except for other cactus, but removing that ability from Scaffolding and Chorus Flowers. I can however understand the almost full blocks being treated as full, but in that case, Chorus Stalks should not be an exception.