feat(mods): add Doggy Talents Next, drop Etched and Grassier Grass

Doggy Talents Next 1.19.1 (NeoForge 1.21.1) overhauls the wolf with a
talent/bond system and companion AI. Better Dogs X DTN 1.2.2 adds its
cosmetic skins; Modrinth only lists a 1.21 NeoForge build, but its
mods.toml declares neoforge >=20.5 and minecraft >=1.18.2, so it loads
on the pack's 21.1.251.

Remove Etched: a second disc/recording pipeline beside music-disc-maker,
duplicating blank discs, boomboxes and albums.

Remove Grassier Grass: its only open risk was shader compatibility with
the shipped Complementary Reimagined.

mods/doggy-talents-next.pw.toml

@@ -0,0 +1,13 @@
+name = "Doggy Talents Next"
+filename = "DoggyTalentsNext-1.21.1-1.19.1.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/oXgmplvv/versions/BKs2urib/DoggyTalentsNext-1.21.1-1.19.1.jar"
+hash-format = "sha512"
+hash = "17d1f743011579b820ddc31b782e4ce292972cfdc415994641228c4a9d81e11d00d2825b3d36f93079e3231cd60b35a7f577214d9ce52db1b1e6169336419bdb"
+
+[update]
+[update.modrinth]
+mod-id = "oXgmplvv"
+version = "BKs2urib"