chore: simplify linter command in Makefile and remove unused error variable

- Update the linter command in the Makefile to remove the installation message for golangci-lint
- Remove the unused error variable from the wizardModel struct in wizard.go

This cleanup enhances the clarity of the Makefile and optimizes the wizard model structure.

Author: aryasaatvik

Makefile

@@ -37,7 +37,7 @@ run: build
 
 # Run linter (requires golangci-lint)
 lint:
-	golangci-lint run || echo "Install golangci-lint: https://golangci-lint.run/usage/install/"
+	golangci-lint run
 
 # Format code
 fmt:

internal/tui/wizard.go

@@ -30,7 +30,6 @@ type wizardModel struct {
 	textInput    textinput.Model
 	cursor       int
 	filtered     []string
-	err          error
 	quitting     bool
 	completed    bool
 	defaultDir   string