feat: new chord editor prototype

package.json

@@ -38,11 +38,14 @@
     "@codemirror/commands": "^6.8.1",
     "@codemirror/lang-javascript": "^6.2.4",
     "@codemirror/language": "^6.11.2",
+    "@codemirror/merge": "^6.11.2",
     "@codemirror/state": "^6.5.2",
     "@codemirror/view": "^6.38.1",
     "@fontsource-variable/material-symbols-rounded": "^5.2.17",
     "@fontsource-variable/noto-sans-mono": "^5.2.7",
+    "@lezer/generator": "^1.8.0",
     "@lezer/highlight": "^1.2.1",
+    "@lezer/lr": "^1.4.5",
     "@material/material-color-utilities": "^0.3.0",
     "@melt-ui/pp": "^0.3.2",
     "@melt-ui/svelte": "^0.86.6",