Some design improvements:

- Arrange print icon right
- Add line break for header information in LaTeX
- Show one-hour absences with only one number (e.g. 1.) instead of two (e. g. 1.-1.)
- Add dots to lesson numbers in absences

biscuit/apps/untis/sub.py

@@ -281,9 +281,12 @@ def get_header_information(subs, date):
             if absence.is_whole_day:
                 # Teacher is missing the whole day
                 elements.append("{}".format(absence.teacher.shortcode))
+            elif absence.from_lesson == absence.to_lesson:
+                elements.append("{} ({}.)".format(absence.teacher.shortcode, absence.from_lesson))
             else:
                 # Teacher is only missing a part of day
-                elements.append("{} ({}-{})".format(absence.teacher.shortcode, absence.from_lesson, absence.to_lesson))
+                elements.append(
+                    "{} ({}.-{}.)".format(absence.teacher.shortcode, absence.from_lesson, absence.to_lesson))
         joined = ", ".join(elements)
 
         info.rows.append(("Abwesende Lehrkräfte", joined))