Use npm instead of yarn (#114)

* Use npm instead of yarn

npm has brought in many improvements since yarn 1.
This means we can switch to something that all developers
ought to have installed anyway. Development is slow enough
on this repo that the speed benefits of yarn 3 are
outweighed by ease of contributing.

* update package lock

Author: jenweber

.github/workflows/ci-cd.yml

@@ -23,14 +23,14 @@ jobs:
       - name: Use Node.js ${{ env.NODE_VERSION }}
         uses: actions/setup-node@v3
         with:
-          cache: 'yarn'
+          cache: 'npm'
           node-version: ${{ env.NODE_VERSION }}
 
       - name: Install dependencies
-        run: yarn install --frozen-lockfile
+        run: npm install --frozen-lockfile
 
       - name: Lint
-        run: yarn lint
+        run: npm run lint
 
 
   test-app:
@@ -44,14 +44,14 @@ jobs:
       - name: Use Node.js ${{ env.NODE_VERSION }}
         uses: actions/setup-node@v3
         with:
-          cache: 'yarn'
+          cache: 'npm'
           node-version: ${{ env.NODE_VERSION }}
 
       - name: Install dependencies
-        run: yarn install --frozen-lockfile
+        run: npm install --frozen-lockfile
 
       - name: Test
-        run: npx percy exec -- yarn test
+        run: npx percy exec -- npm test
         env:
           PERCY_PARALLEL_NONCE: ${{ env.PERCY_PARALLEL_NONCE }}
           PERCY_PARALLEL_TOTAL: ${{ env.PERCY_PARALLEL_TOTAL }}
@@ -82,11 +82,11 @@ jobs:
       - name: Use Node.js ${{ env.NODE_VERSION }}
         uses: actions/setup-node@v3
         with:
-          cache: 'yarn'
+          cache: 'npm'
           node-version: ${{ env.NODE_VERSION }}
 
       - name: Install dependencies
-        run: yarn install --frozen-lockfile
+        run: npm install --frozen-lockfile
 
       - name: Deploy
-        run: yarn deploy
+        run: npm run deploy

CONTRIBUTING.md

@@ -21,7 +21,7 @@ This is an Ember app, so the usual steps follow:
     ```
 1. Install packages.
     ```bash
-    yarn
+    npm install
     ```
 1. Run the app.
     ```bash
@@ -64,4 +64,4 @@ We store code snippets in `snippets` folder. Afterwards, we update the `model` h
 
 ## How It's Made (Recap)
 
-You can find the text in `translations/en-us.yaml`, the code in `snippets`, and the app structure in `app/routes/application.js`! 💖
+You can find the text in `translations/en-us.yaml`, the code in `snippets`, and the app structure in `app/routes/application.js`! 💖

README.md

@@ -20,14 +20,14 @@ We use [GitHub Actions](.github/workflows/ci-cd.yml) to lint and test the app wh
 Run the following commands to lint and test from local machine:
 
 ```bash
-yarn lint
-yarn test
+npm run lint
+npm test
 ```
 
 To fix linting errors, try the following command:
 
 ```bash
-yarn lint:fix
+npm run lint:fix
 ```
 
 
@@ -38,7 +38,7 @@ We use [GitHub Actions](.github/workflows/ci-cd.yml) to deploy the app to `gh-pa
 If you are a repo maintainer, you can run the following command to deploy from local machine:
 
 ```bash
-yarn deploy
+npm run deploy
 ```