mesheryctl: Improve multi-word filter name handling in delete command

[MunishMummadi]

Description

This PR improves the handling of filter names in the mesheryctl filter delete command, specifically addressing the issue with multi-word filter names. It resolves issue #11370 by implementing proper support for quoted multi-word arguments and providing clear error messages for incorrect usage.

Changes

• Added support for quoted multi-word filter names
• Implemented error handling for unquoted multi-word arguments
• Added functionality to trim surrounding quotes from input
• Updated error messages to guide users on correct usage

Areas affected and ensured works

• mesheryctl filter delete command

• Error handling in the filter delete command

• Input processing for filter names

• Refactored a few lines.

• [x] Yes, I signed my commits.