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/sunkern.asm

@@ -1,10 +1,10 @@
-; SunkernPokedexEntry: ; 0x1cda87
 	db "SEED@" ; species name
 	dw 100, 40 ; height, weight
 
 	db   "It is very weak."
 	next "Its only means of"
 	next "defense is to"
+
 	page "shake its leaves"
 	next "desperately at its"
 	next "attacker.@"