Support 1.18 (experimental) snapshots (#158)

* Half support 1.18-experimental-snapshot-1

* Fetch 1.18 presets and improve rendering of lists

* Noise preview with deepslate

* Biome preview with deepslate

* Generalize canvas logic in one hook

* Simplify useCanvas

* Use mcschema for 1.18

* Improve noise settings preview controls

* Fix build

* Update deepslate and improve preview caching

* Cleanup, remove old preview code

* Couple seed between model and preview

* Limit output to improve performance + copy feedback
For the vanilla overworld dimension (200K lines),
it took 2+ seconds to write the output to the textarea

Now capped at 10K chars

* Add surface_relative_threshold to decorator preview

* Improve fixed list errors

src/locales/en.json

@@ -38,6 +38,9 @@
   "preview": "Visualize",
   "preview.scale": "Scale",
   "preview.depth": "Depth",
+  "preview.factor": "Factor",
+  "preview.offset": "Offset",
+  "preview.peaks": "Peaks",
   "preview.width": "Width",
   "source_placeholder": "Paste JSON content here",
   "undo": "Undo",