Party popper emoji added.

internal/emoji/catalog.go

@@ -468,6 +468,7 @@ var categories = []struct {
 		{ID: "🧙‍♀️", Label: "Witch"},
 		{ID: "🧨", Label: "Firecracker"},
 		{ID: "🎊", Label: "Confetti ball"},
+		{ID: "🎉", Label: "Party popper"},
 		{ID: "🎈", Label: "Balloon"},
 		{ID: "🎀", Label: "Ribbon"},
 		{ID: "🪄", Label: "Magic wand"},

internal/emoji/catalog_test.go

@@ -21,7 +21,7 @@ func TestCatalogUniquenessAndSequences(t *testing.T) {
 			seen[id] = true
 		}
 	}
-	if len(seen) != 500 || !seen["🧑‍🚀"] || !seen["🐐"] {
+	if len(seen) != 501 || !seen["🧑‍🚀"] || !seen["🐐"] || !seen["🎉"] {
 		t.Fatalf("catalog missing entries: %d", len(seen))
 	}
 }