Allow to define default branches (#125)

This try to address #115

Co-authored-by: Simon Vieille <simon@deblan.fr>
Co-authored-by: 6543 <6543@obermui.de>
Reviewed-on: https://codeberg.org/Codeberg/pages-server/pulls/125
Reviewed-by: 6543 <6543@obermui.de>
Co-authored-by: deblan <deblan@noreply.codeberg.org>
Co-committed-by: deblan <deblan@noreply.codeberg.org>

server/handler/handler_test.go

@@ -18,6 +18,7 @@ func TestHandlerPerformance(t *testing.T) {
 		"https://docs.codeberg.org/pages/raw-content/",
 		[]string{"/.well-known/acme-challenge/"},
 		[]string{"raw.codeberg.org", "fonts.codeberg.org", "design.codeberg.org"},
+		[]string{"pages"},
 		cache.NewKeyValueCache(),
 		cache.NewKeyValueCache(),
 	)