move samples to dedicated samples folder

repl/src/App.jsx

@@ -43,8 +43,8 @@ evalScope(
 );
 
 loadWebDirt({
-  sampleMapUrl: 'EmuSP12.json',
-  sampleFolder: 'EmuSP12',
+  sampleMapUrl: './samples/EmuSP12.json',
+  sampleFolder: './samples/EmuSP12',
 });
 
 prebake();

repl/src/prebake.mjs

@@ -39,7 +39,7 @@ export function prebake() {
     },
     // https://archive.org/details/SalamanderGrandPianoV3
     // License: CC-by http://creativecommons.org/licenses/by/3.0/ Author: Alexander Holm
-    './piano/',
+    './samples/piano/',
   );
 }