chore(dlcm-portal): add stages

add stages to clean workspace and zip the app folder.

Jenkinsfile

@@ -6,37 +6,34 @@ pipeline{
   }
 
   stages{
-    stage('Clean'){
-      cleanWs()
-    }
-
-    stage ('checkout'){
+    stage ('Checkout'){
       steps{
+        cleanWs()
         checkout scm
       }
     }
 
-    stage ('install modules'){
+    stage ('Install modules'){
       steps{
         sh 'npm install --verbose -d'
       }
     }
 
-    stage ('test'){
+    stage ('Test'){
       steps{
         // sh 'ng test --watch=false --no-progress --browsers=ChromeNoSandboxHeadless'
         echo 'Test....'
       }
     }
 
-    stage ('code quality'){
+    stage ('Code quality'){
       steps{
         // sh 'ng lint'
         echo 'Lint....'
       }
     }
 
-    stage ('build') {
+    stage ('Build') {
       steps{
         sh 'ng build --aot=true --prod=true'
       }