Clean up comments

Base data: types uniquely lacked a comment; items on one line; distinguish unknowns
Dex entries: don't imply that pointers don't exist

data/pokemon/dex_entries/gloom.asm

@@ -1,10 +1,10 @@
-; GloomPokedexEntry: ; 0x1828a6
 	db "WEED@" ; species name
 	dw 207, 190 ; height, weight
 
 	db   "The smell from its"
 	next "drool-like syrup"
 	next "and the pollen on"
+
 	page "its petals is so"
 	next "bad, it may make"
 	next "opponents faint.@"