Move text editor determination to cli package

src/backend/configParser.go

@@ -66,11 +66,6 @@ func WriteConfig(configFileMap map[string]string, append bool) {
 
 		// create LIBMUTTON section
 		libmuttonSection, _ = cfg.NewSection("LIBMUTTON")
-
-		// set default textEditor value
-		if configFileMap["textEditor"] == "" {
-			configFileMap["textEditor"] = textEditorFallback()
-		}
 	}
 
 	// write provided configFileMap key-value pairs to the LIBMUTTON section

src/backend/initUNIX.go

@@ -1,19 +0,0 @@
-//go:build !windows
-
-package backend
-
-import (
-	"os"
-)
-
-const FallbackEditor = "vi" // vi is pre-installed on most UNIX systems
-
-// textEditorFallback returns the value of the $EDITOR environment variable, or FallbackEditor if it is not set
-func textEditorFallback() string {
-	// ensure textEditor is set
-	textEditor := os.Getenv("EDITOR")
-	if textEditor == "" {
-		textEditor = FallbackEditor
-	}
-	return textEditor
-}

src/backend/initWIN.go

@@ -1,10 +0,0 @@
-//go:build windows
-
-package backend
-
-const FallbackEditor = "nvim" // since there is no pre-installed CLI editor on Windows, default to the most popular one
-
-// textEditorFallback returns FallbackEditor
-func textEditorFallback() string {
-	return FallbackEditor
-}