fix: force import even if the object is already there; improve wrong connection message

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [Yes]

Does this introduce a change in the cloud provider implementation, if so which cloud?

• AWS
• Azure
• GCP
• IBM

Updates description?

1. Force import object even if it is already there (just when --reject-duplicates is raised)
2. Improve wrong connection string message - Will block the server starting if in single mode

Issue #141 (closed)