build: fix exports for date adapters

Author: dereekb

package.json

@@ -184,16 +184,25 @@
   ],
   "exports": {
     "./date-adapters/date-adapter": {
-      "types": "./date-adapters/esm/date-adapter.d.ts",
-      "default": "./date-adapters/esm/date-adapter.js"
+      "main": "./date-adapters/index.js",
+      "types": "./date-adapters/index.d.ts",
+      "default": "./date-adapters/esm/date-adapter.js",
+      "require": "./date-adapters/index.js",
+      "import": "./date-adapters/esm/date-adapter.js"
     },
     "./date-adapters/date-fns": {
-      "types": "./date-adapters/esm/date-fns/index.d.ts",
-      "default": "./date-adapters/esm/date-fns/index.js"
+      "main": "./date-adapters/date-fns/index.js",
+      "types": "./date-adapters/date-fns/index.d.ts",
+      "default": "./date-adapters/esm/date-fns/index.js",
+      "require": "./date-adapters/date-fns/index.js",
+      "import": "./date-adapters/esm/date-fns/index.js"
     },
     "./date-adapters/moment": {
-      "types": "./date-adapters/esm/moment/index.d.ts",
-      "default": "./date-adapters/esm/moment/index.js"
+      "main": "./date-adapters/moment/index.js",
+      "types": "./date-adapters/moment/index.d.ts",
+      "default": "./date-adapters/esm/moment/index.js",
+      "require": "./date-adapters/moment/index.js",
+      "import": "./date-adapters/esm/moment/index.js"
     }
   }
 }