refactor: introduce new fn for creating explaingen with error, update tests

Author: nedpals

translation.go

@@ -39,6 +39,12 @@ func (gen *ExplainGenerator) CreateSection(name string) *ExplainGenerator {
 	return gen.Sections[name]
 }
 
+func NewExplainGeneratorForError(name string) *ExplainGenerator {
+	return &ExplainGenerator{
+		ErrorName: name,
+	}
+}
+
 type BugFixSuggestion struct {
 	Title        string
 	Steps        []*BugFixStep

translation_test.go

@@ -10,7 +10,7 @@ import (
 
 func TestExplainGenerator(t *testing.T) {
 	t.Run("errorName", func(t *testing.T) {
-		gen := &lib.ExplainGenerator{ErrorName: "TestError"}
+		gen := lib.NewExplainGeneratorForError("TestError")
 
 		if gen.ErrorName != "TestError" {
 			t.Errorf("Expected 'TestError', got %s", gen.ErrorName)
@@ -65,7 +65,7 @@ func TestExplainGenerator(t *testing.T) {
 		})
 
 		t.Run("Append with newline", func(t *testing.T) {
-			gen := &lib.ExplainGenerator{ErrorName: "TestError"}
+			gen := lib.NewExplainGeneratorForError("TestError")
 			gen.Add("This is a simple error explanation.\n")
 			gen.Add("This is another error message.")