Create react-migration-v8-v9 with shims and stories

.github/CODEOWNERS

@@ -174,6 +174,7 @@ packages/react-components/react-progress @microsoft/cxe-red @tomi-msft
 packages/react-components/react-persona @microsoft/cxe-red @sopranopillow
 packages/react-components/react-avatar-context @microsoft/teams-prg
 packages/react-components/react-infobutton @microsoft/cxe-red @sopranopillow
+packages/react-migration-v8-v9 @microsoft/cxe-coastal @geoffcoxmsft
 # <%= NX-CODEOWNER-PLACEHOLDER %>
 
 

apps/public-docsite-v9/.storybook/main.js

@@ -8,6 +8,7 @@ module.exports = /** @type {Omit<import('../../../.storybook/main'), 'typescript
     '../src/**/*.stories.mdx',
     '../src/**/*.stories.@(ts|tsx)',
     ...utils.getVnextStories(),
+    '../../../packages/react-migration-v8-v9/src/**/@(index.stories.@(ts|tsx)|*.stories.mdx)',
   ],
   staticDirs: ['../public'],
   addons: [...rootMain.addons],

apps/public-docsite-v9/src/Concepts/Migration/FromV8/Components/Button/Button.stories.mdx → apps/public-docsite-v9/src/Concepts/Migration/FromV8/Components/Button.stories.mdx

@@ -1,5 +1,4 @@
 import { Meta } from '@storybook/addon-docs';
-import { ButtonShimExamples } from './ButtonShimExamples.tsx';
 
 <Meta title="Concepts/Migration/from v8/Components/Button Migration" />
 
@@ -71,18 +70,3 @@ To migrate a button replace the v8 usage with the corresponding v9 button varian
 | theme                    | (use FluentProvider)                       |
 | toggle                   | (use ToggleButton)                         |
 | uniqueId                 | HTML key                                   |
-
-## Button Shims
-
-The button shim components accept v8 `IButtonProps` and render v9 buttons.
-Shims are useful when you have a large number of usage instances, want to render v9 components, and do not have time
-or resources to update every instance.
-
-Prefer to migrate your code to use v9 buttons if possible rather than take a use shims.
-Shim depend on both v8 and v9 so may prevent bundle size optimizations.
-
-You can find the button shims in the Fluent UI React repository here [apps/public-docsite-v9/src/shims/ButtonShim.tsx](https://github.com/microsoft/fluentui/blob/master/apps/public-docsite-v9/src/shims/ButtonShim.tsx)
-
-<Canvas>
-  <ButtonShimExamples />
-</Canvas>