server: better html output

server/HtmlOrphans.hs

@@ -145,7 +145,7 @@ instance ToHtml (DirResult a) where
 
     p_ $ do badge maxlevel "Linted:"; " "; headerText maxlevel
 
-    h2_ "Exits"
+    h3_ "Exits"
     unless (null dirresultDeps) $ ul_ $
       forM_ dirresultDeps $ \missing -> do
         li_ $ do
@@ -187,10 +187,12 @@ instance ToHtml (DirResult a) where
         h4_ (toHtml name)
         ul_ $ forM_ mapresultGeneral $ \lint ->
           li_ (toHtml lint)
-        h5_ "Layers"
-        ul_ (listMapWithKey mapresultLayer)
-        h5_ "Tilesets"
-        ul_ (listMapWithKey mapresultTileset)
+        unless (null mapresultLayer) $ do
+          h5_ "Layers"
+          ul_ (listMapWithKey mapresultLayer)
+        unless (null mapresultTileset) $ do
+          h5_ "Tilesets"
+          ul_ (listMapWithKey mapresultTileset)
 
     where
       maxlevel = maximumLintLevel res