feat(pack): replace FTB Chunks with Open Parties and Claims and Xaero's maps

FTB Chunks is the only mod in the FTB suite that nothing else depends on --
FTB Quests requires FTB Library and FTB Teams only, and ships no claim-chunk
task type -- so it can leave without touching quests. Open Parties and Claims
takes over claims and force-loading, and the Xaero's suite restores the
minimap, world map and waypoints that b0542f9 removed.

The three Xaero's entries are byte-identical to the ones b0542f9 deleted, so
this reverts the map half of that commit rather than integrating anything new.
Xaero's + OPAC is also the pairing both projects document: the world map
displays OPAC claims and lets you claim and forceload from the map screen.

Drops config/ftbchunks-client.snbt and the .packwizignore negation that
shipped it, since the FTB Chunks minimap it enabled no longer exists. Also
keeps authoring/review material and migration scratch out of the pack index.

Server-side follow-up (not shippable, lives in the world save): set
maxPlayerClaimForceloads to 25, point primaryPartySystem at FTB Teams, and
decide claims.forceload.offlineForceload.

mods/ftb-chunks-forge.pw.toml

@@ -1,13 +0,0 @@
-name = "FTB Chunks (NeoForge)"
-filename = "ftb-chunks-neoforge-2101.1.22.jar"
-side = "both"
-
-[download]
-hash-format = "sha1"
-hash = "a53f1bb7965c6954a348d4f321f03d3971ad503f"
-mode = "metadata:curseforge"
-
-[update]
-[update.curseforge]
-file-id = 8791113
-project-id = 314906

mods/open-parties-and-claims.pw.toml

@@ -0,0 +1,13 @@
+name = "Open Parties and Claims"
+filename = "open-parties-and-claims-neoforge-1.21.1-0.31.6.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/gF3BGWvG/versions/3i48dTzz/open-parties-and-claims-neoforge-1.21.1-0.31.6.jar"
+hash-format = "sha512"
+hash = "6f8f2d570b6f674a9180576524b3ba507a3ad046ff319353cee50738644bf46c03ca460fb7c6880eed76f07eb2a26a983166d2510951202af86b3e120b743181"
+
+[update]
+[update.modrinth]
+mod-id = "gF3BGWvG"
+version = "3i48dTzz"

mods/xaeros-minimap-world-map-waystones-compatibility-forge.pw.toml

@@ -0,0 +1,13 @@
+name = "Xaero's Minimap & World Map - Waystones Compatibility"
+filename = "xaeros_waystones_compatibility-NeoForge-1.21.1-2.1.0.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/7mLhyqIY/versions/k8wIAiWT/xaeros_waystones_compatibility-NeoForge-1.21.1-2.1.0.jar"
+hash-format = "sha512"
+hash = "440da659b1c406ff410841248a28adba60b73f3d91f513ba335b9e5d44b3e48ab63d5ecc86484ff1e3d1a4f7830ad7566fc1efec2a03eba3c958b414b61feea0"
+
+[update]
+[update.modrinth]
+mod-id = "7mLhyqIY"
+version = "k8wIAiWT"

mods/xaeros-minimap.pw.toml

@@ -0,0 +1,13 @@
+name = "Xaero's Minimap"
+filename = "xaerominimap-neoforge-1.21.1-26.5.0.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/1bokaNcj/versions/Q1tuMQBB/xaerominimap-neoforge-1.21.1-26.5.0.jar"
+hash-format = "sha512"
+hash = "0fde1066dd922ac0796d166ba1bf1b843873b8d8563da3a08777df54bb377ff6466096650c730ad1b96e0aecf2d8974cd87c32165edf6a30f6653840c3f99abf"
+
+[update]
+[update.modrinth]
+mod-id = "1bokaNcj"
+version = "Q1tuMQBB"

mods/xaeros-world-map.pw.toml

@@ -0,0 +1,13 @@
+name = "Xaero's World Map"
+filename = "xaeroworldmap-neoforge-1.21.1-1.46.0.jar"
+side = "both"
+
+[download]
+url = "https://cdn.modrinth.com/data/NcUtCpym/versions/9Ckiihkz/xaeroworldmap-neoforge-1.21.1-1.46.0.jar"
+hash-format = "sha512"
+hash = "fb14d11d66e0a6441981b18454c86534d8f534cd159ca19fa612950521788d858f37f18fe2093bb9b43ca0a88ae9af578eced5d140ff645a7681d7e452e8a268"
+
+[update]
+[update.modrinth]
+mod-id = "NcUtCpym"
+version = "9Ckiihkz"