chore(dlcm-portal): add stages

add stages to clean workspace and zip the app folder.

Jenkinsfile

@@ -6,6 +6,10 @@ pipeline{
   }
 
   stages{
+    stage('Clean'){
+      cleanWs()
+    }
+
     stage ('checkout'){
       steps{
         checkout scm
@@ -41,6 +45,7 @@ pipeline{
     stage('Deploy') {
       steps {
         echo 'Deploying....'
+        zip dir: "${workspace}/dist/**", zipFile: "dlcm-frontend.zip" // Create a zip file of content in the workspace
       }
     }