Migrate to npm, upgrade dependencies

.github/workflows/release.yml

@@ -18,11 +18,11 @@ jobs:
           node-version: 16.x
 
       - name: Install dependencies
-        run: yarn install --ignore-scripts
+        run: npm install --ignore-scripts
 
       - name: Create Release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
         run: |
-          yarn release
+          npm run release

README.md

@@ -32,19 +32,19 @@ Click the **Use this template** button to get started.
 Clone your repository and install dependencies.
 
 ```sh
-yarn
+npm install
 ```
 
 <!-- README END -->
 
 ### Development scripts
 
-- `yarn start` runs babel in watch mode and starts Storybook
-- `yarn build` build and package your addon code
+- `npm run start` runs babel in watch mode and starts Storybook
+- `npm run build` build and package your addon code
 
 ### Switch from TypeScript to JavaScript
 
-Don't want to use TypeScript? We offer a handy eject command: `yarn eject-ts`
+Don't want to use TypeScript? We offer a handy eject command: `npm run eject-ts`
 
 This will convert all code to JS. It is a destructive process, so we recommended running this before you start writing any code.
 
@@ -117,7 +117,7 @@ Go to `Settings > Secrets`, click `New repository secret`, and add your `NPM_TOK
 To create a release locally you can run the following command, otherwise the GitHub action will make the release for you.
 
 ```sh
-yarn release
+npm run release
 ```
 
 That will: