chore: api-extractor.json: change target to build/osmd.d.ts

api-extractor.json

@@ -8,7 +8,7 @@
     },
     "dtsRollup": {
       "enabled": true,
-      "untrimmedFilePath": "build/dist/src/index.d.ts"
+      "untrimmedFilePath": "build/opensheetmusicdisplay.d.ts"
     },
     "messages": {
       "extractorMessageReporting": {