Only scroll when strictly necessary; works better on Chromium (#70)

- Use auto for overflow-x, rather than scroll (d49ab95e2aa80a4e110482a289d8fa64b7cd1373)

app.py

@@ -1223,7 +1223,7 @@ table {
 }
 
 table > tbody > tr > td:nth-child(2) > div {
-    overflow-x: scroll
+    overflow-x: auto
 }
 """