fix(html): unescape stripped html entities

Co-Authored-By: Virgil <virgil@lethean.io>

pipeline.go

@@ -3,6 +3,7 @@
 package html
 
 import (
+	htmlstd "html"
 	"strings"
 	"unicode"
 
@@ -48,7 +49,7 @@ func StripTags(html string) string {
 		b.WriteRune(r)
 		seenText = true
 	}
-	return b.String()
+	return htmlstd.UnescapeString(b.String())
 }
 
 // pipeline.go: Imprint renders a node tree to HTML, strips tags, tokenises the text,

pipeline_test.go

@@ -55,10 +55,10 @@ func TestStripTags_NoTags(t *testing.T) {
 }
 
 func TestStripTags_Entities(t *testing.T) {
-	got := StripTags(`<script>`)
-	want := "<script>"
+	got := StripTags(`<p>&amp; &lt;script&gt;</p>`)
+	want := "& <script>"
 	if got != want {
-		t.Errorf("StripTags should preserve entities, got %q, want %q", got, want)
+		t.Errorf("StripTags should unescape entities, got %q, want %q", got, want)
 	}
 }