cleanup the root.go file

[GrantBirki]

resolves: #18

[Copilot]

Pull Request Overview

This PR cleans up the root.go file by refactoring output-related functions into a dedicated output.go file and adding corresponding tests.

• Moved display functions (table, JSON, plain) along with helper functions (pad, truncate) from root.go to output.go.
• Removed unused imports from root.go.
• Added test cases in output_test.go to cover the new output functions.

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
internal/cmd/root.go	Removed output formatting functions and cleaned up unused imports.
internal/cmd/output.go	Added output functions and helper methods for table, JSON, and plain views.
internal/cmd/output_test.go	Added basic tests for the output functions.

Comments suppressed due to low confidence (2)

internal/cmd/output.go:164

• The error returned by json.MarshalIndent is silently ignored. Consider handling the error to avoid unexpected behavior in case of marshaling failures.

jsonData, _ := json.MarshalIndent(output, "", "  " )

internal/cmd/output_test.go:39

• The tests call the display functions but lack assertions to verify expected output. Consider capturing the output (e.g., by redirecting stdout) and asserting on its content.

displayTableStats(stats)