ci: switch to npm ci in github actions (#2046)

.github/workflows/generate-theme-doc.yml

@@ -20,7 +20,7 @@ jobs:
 
       - name: npm install, generate readme
         run: |
-          npm install
+          npm ci
           npm run theme-readme-gen
         env:
           CI: true

.github/workflows/test.yml

@@ -22,7 +22,7 @@ jobs:
 
       - name: Install & Test
         run: |
-          npm install
+          npm ci
           npm run test
 
       - name: Run Prettier

.gitignore

@@ -1,7 +1,6 @@
 .vercel
 .env
 node_modules
-package-lock.json
 *.lock
 .vscode/
 .idea/