refactor: Format root-level files (#3858)

* ✨ Create `format.mjs` script

* 👕 Add lint exception

* ⚡ Add root formatting to `format` command

* 🎨 Fix glob in `.prettierignore`

* 🚚 Improve naming

* 🎨 Format root-level files

* ⚡ Simplify check

* ⚡ Add period to extension

* ⚡ Locate config

* ⚡ Add `ignore` arg

* 🚚 Move `config` and `ignore` after check

.github/workflows/tests.yml

@@ -4,7 +4,6 @@ on: [push]
 
 jobs:
   build:
-
     runs-on: ubuntu-latest
 
     timeout-minutes: 30
@@ -14,17 +13,17 @@ jobs:
         node-version: [14.x, 16.x]
 
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
-      with:
-        node-version: ${{ matrix.node-version }}
-    - name: npm install, build, and test
-      run: |
-        npm install -g npm@latest
-        npm install
-        npm run build --if-present
-        npm test
-        npm run lint
-      env:
-        CI: true
+      - uses: actions/checkout@v1
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: npm install, build, and test
+        run: |
+          npm install -g npm@latest
+          npm install
+          npm run build --if-present
+          npm test
+          npm run lint
+        env:
+          CI: true