feat(pack): add 18 requested mods plus four required libraries

Content and QoL: Emotecraft, Ping Wheel, Nature's Compass, Farmer's Cutting:
Twilight Forest, Ars Nouveau's Flavors & Delight, Ocean's Delight, End's
Delight, Twilight's Flavor & Delight, Legendary Tooltips, Dynamic FPS,
Subtle Effects, Enchantment Descriptions, Entity Culling, Xaero Train Map,
Jade Sable Compat, Sable: Physics Compat, Apothic Category Compat,
Gravestone x Curios API Compat.

packwiz auto-resolved four required libraries that were not in the pack:
Iceberg and Prism (Legendary Tooltips), Prickle and Bookshelf
(Enchantment Descriptions).

Each pinned version was confirmed to be a NeoForge 1.21.1 build and each
jar's sha512 re-verified against its recorded hash. Sides are derived from
Modrinth's environment metadata; packwiz maps server_only to both on
purpose because such mods also work in singleplayer, where the client is
the logical server (dedicated_server_only is what yields "server").

Farmer's Cutting: Twilight Forest is published as a mod as well as a
datapack, and the neoforge mod variant is what gets pinned.

mods/dynamic-fps.pw.toml

@@ -0,0 +1,13 @@
+name = "Dynamic FPS"
+filename = "dynamic-fps-3.11.4+minecraft-1.21.0-neoforge.jar"
+side = "client"
+
+[download]
+url = "https://cdn.modrinth.com/data/LQ3K71Q1/versions/T238FZpQ/dynamic-fps-3.11.4%2Bminecraft-1.21.0-neoforge.jar"
+hash-format = "sha512"
+hash = "8eb18a280b265e598540306275b51a165836f4b14c6c703b6ced11fcac50bfab439e4deb69e222f62614a9f15fa0ef58e5bd84e20e37ae57755d9c2f8b134057"
+
+[update]
+[update.modrinth]
+mod-id = "LQ3K71Q1"
+version = "T238FZpQ"