[experiments/twsearch] Update the local server URL.

Note that it still doesn't work, as the KPuzzle definition format hasn't been updated yet.

src/sites/experiments.cubing.net/cubing.js/twsearch/twsearch-server.ts

@@ -31,7 +31,7 @@ export async function solveTwsearchServer(
     options.searchArgs.randomStart ??= true;
     options.searchArgs.startPruneDepth ??= 5;
   }
-  const response = await fetch("http://localhost:2023/v0/solve/state", {
+  const response = await fetch("http://localhost:2023/v0/solve/pattern", {
     ...postJSONInit,
     body: JSON.stringify({
       definition: kpuzzle.definition,