Rebuild dist bundles as ESM to match type:module

dist/restore-only/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

dist/restore/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

dist/save-only/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}

dist/save/package.json

@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}