Refactor cli/runtime to fix linter issues

[saji-pivotal]

Bug description
cli/runtime has linter issues which have been skipped for now. The code needs to be refactored to actually fix the linter issues
These are the following files that need to be refactored

apis/config/v1alpha/clientconfig.go
apis/config/v1alpha/clientconfig_types.go
component/prompt.go
config/conversion.go

Affected product area (please put an X in all that apply)

• ( ) APIs
• ( ) Addons
• ( ) CLI
• ( ) Docs
• ( ) IAM
• ( ) Installation
• ( ) Plugin
• ( ) Security
• ( ) Test and Release
• ( ) User Experience
• ( ) Developer Experience

Expected behavior

Steps to reproduce the bug

Version (include the SHA if the version is not obvious)

Environment where the bug was observed (cloud, OS, etc)

Relevant Debug Output (Logs, manifests, etc)