Replace yarn with npm

.github/workflows/main.yml

@@ -23,7 +23,7 @@ jobs:
         uses: bahmutov/npm-install@v1
 
       - name: Test
-        run: yarn test --ci --coverage --maxWorkers=2
+        run: npm test --ci --coverage --maxWorkers=2
 
       - name: Build
-        run: yarn build
+        run: npm run build

.github/workflows/publish.yaml

@@ -22,13 +22,13 @@ jobs:
           registry-url: 'https://registry.npmjs.org' # set up .npmrc file to publish to npm
 
       - name: Install dependencies
-        run: yarn install
+        run: npm install
 
       - name: Build
-        run: yarn build
+        run: npm run build
 
       - name: Publish
-        run: yarn publish
+        run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
 

.gitignore

@@ -7,4 +7,4 @@ dist
 target/
 .vscode/
 .idea/
-package-lock.json
+yarn.lock

.gitpod.yml

@@ -3,5 +3,5 @@
 # and commit this file to your remote git repository to share the goodness with others.
 
 tasks:
-  - init: yarn install && yarn run build
-    command: yarn run test
+  - init: npm install && npm run build
+    command: npm test