Resolve "Date overflows box in print view when only a few lessons are displayed"

Closes #136 (closed)

aleksis/apps/alsijil/static/css/alsijil/full_register.css

@@ -25,7 +25,11 @@ tr.lessons-day-first {
     border-top: 3px solid rgba(0, 0, 0, 0.3);
 }
 
-th.lessons-day-head, td.rotate, th.rotate {
+th.lessons-day-head {
+    text-align: center;
+}
+
+td.rotate, th.rotate {
     text-align: center;
     transform: rotate(-90deg);
 }