1642 Fix entire themes folder overwrite issue when deployed with CI

Related ticket(s):

Closes: https://gitlab.e.foundation/e/infra/backlog/-/issues/1642

Other(s):

Summary:

Fix entire themes folder overwrite issue when deployed with CI as the rsync was targeting ${DEPLOYMENT_PATH}/html/themes/ instead of ${DEPLOYMENT_PATH}/html/themes/${APP_NAME} ~ ${DEPLOYMENT_PATH}/html/themes/eCloud

Change list:

• cfb53ad fix rsync path
• 25c417f use APP_NAME
• ab3e280 remove fi from unused if condition

Steps to reproduce or deploy/Links for testing:

N/A

Checklist:

• Lint check
• CI updates if any
• Deployed and tested in staging
• Documentation update if required