Add Polaris migrator and sandbox to tools (#8087)

Fixes #8081

Adds Polaris Migrator / Sandbox to the tools section and fix some copy
errors in the tool section

Author: sophschneider

polaris-migrator/README.md

@@ -32,7 +32,7 @@ The [Shopify/polaris GitHub repo](https://github.com/Shopify/polaris) is an open
 
 - [React components](https://github.com/Shopify/polaris/tree/main/polaris-react#using-the-react-components)
 - [Design tokens](https://github.com/Shopify/polaris/tree/main/polaris-tokens#installation)
-- [VS Code extension](https://marketplace.visualstudio.com/items?itemName=Shopify.polaris-for-vscode)
+- [VS Code extension](/tools/polaris-for-vscode)
 
 ## Tutorials
 

polaris.shopify.com/content/getting-started/index.md

@@ -1,6 +1,6 @@
 ---
 title: Tools
-description: Extensions, plugins, and other tools to help you use Polaris to build Admin experiences.
+description: Extensions, plugins, and other tools to help build with Polaris.
 icon: ToolsMajor
 order: 11
 ---

polaris.shopify.com/content/tools/index.md

@@ -1,7 +1,8 @@
 ---
 title: Polaris for VS Code
-description: Official VS Code extension for building with the Shopify Polaris Design System
+description: Official VS Code extension for building with the Shopify Polaris design system.
 icon: HintMajor
+order: 1
 ---
 
 ![Demo of Polaris for VS Code tokens autocomplete](https://github.com/Shopify/polaris/blob/main/polaris-for-vscode/docs/polaris-for-vscode-preview.gif?raw=true)