Add TS types for component-component, dialog, portal, rect, alert-dia…

…log, and utils.

packages/alert-dialog/index.d.ts

@@ -0,0 +1,20 @@
+declare module "@reach/alert-dialog" {
+  import { DialogProps, DialogContentProps } from "@reach/dialog";
+
+  type AlertDialogProps = {
+    isOpen?: boolean;
+    onDismiss?: () => void;
+    leastDestructiveRef?: React.RefObject<HTMLElement>;
+    children: React.ReactNode;
+  } & DialogProps;
+
+  type AlertDialogContentProps = {
+    children: React.ReactNode;
+  } & DialogContentProps;
+
+  export const AlertDialog: React.SFC<AlertDialogProps>;
+  export const AlertDialogLabel: React.SFC<HTMLDivElement>;
+  export const AlertDialogDescription: React.SFC<HTMLDivElement>;
+  export const AlertDialogOverlay: React.SFC<AlertDialogProps>;
+  export const AlertDialogContent: React.SFC<AlertDialogContentProps>;
+}

packages/alert-dialog/package.json

@@ -6,6 +6,7 @@
   "license": "MIT",
   "main": "index.js",
   "module": "es/index.js",
+  "types": "index.d.ts",
   "scripts": {
     "test": "echo \"Write some tests you bum!\"",
     "build": "node ../../shared/build-package",