improvements to perf manager chart and making sure tss and trimp are calculated always

rowers/garmin_stuff.py

@@ -259,6 +259,8 @@ def garmin_workouts_from_details(data):
             w.summary=summary
             w.uploadedtogarmin = garminid
             w.save()
+            trimp,hrtss = dataprep.workout_trimp(w)
+            rscore,normp = dataprep.workout_rscore(w)
         except Rower.DoesNotExist:
             pass