remove deep export

packages/keyboard-keys/README.md

@@ -31,14 +31,14 @@ is not encouraged for reuse since this propoerty has been deprecated for a while
 standards.
 
 ```ts
-import { Enter, a } from '@fluentui/keyboard-keys/lib/keyCodes';
+import { keyCodes } from '@fluentui/keyboard-keys';
 
 const onKeyDown = (e: React.KeyboardEvent) => {
-  if (e.keyCode === Enter) {
+  if (e.keyCode === keyCodes.Enter) {
     // ...
   }
 
-  if (e.key === a) {
+  if (e.key === keyCodes.a) {
     // ...
   }
 };

packages/keyboard-keys/bundle-size/MultipleKeys.fixture.js

@@ -1,6 +1,6 @@
-import { Enter, Tab, ArrowDown, ArrowLeft, ArrowRight } from '@fluentui/keyboard-keys';
+import { keyCodes } from '@fluentui/keyboard-keys';
 
-console.log(Enter, Tab, ArrowDown, ArrowLeft, ArrowRight);
+console.log(keyCodes.Enter, keyCodes.Tab, keyCodes.ArrowDown, keyCodes.ArrowLeft, keyCodes.ArrowRight);
 
 export default {
   name: 'Multiple keys',

packages/keyboard-keys/bundle-size/SingleKeyCode.fixture.js

@@ -1,6 +1,6 @@
-import { Enter } from '@fluentui/keyboard-keys/lib/keyCodes';
+import { keyCodes } from '@fluentui/keyboard-keys';
 
-console.log(Enter);
+console.log(keyCodes.Enter);
 
 export default {
   name: 'Single keyCode',