Show prices for logged in users

Trip prices are visible on trip list, accommodation list,
conference list and travel list.

Prices are hidden if not logged in, except conference prices.

Still need to show prices on individual trip page.

agenda/trip.py

@@ -1,5 +1,6 @@
 """Trips."""
 
+import decimal
 import os
 import typing
 from datetime import date, datetime, time
@@ -100,6 +101,11 @@ def build_trip_list(
         key=depart_datetime,
     )
 
+    for item in travel_items:
+        price = item.get("price")
+        if price:
+            item["price"] = decimal.Decimal(price)
+
     data = {
         "travel": travel_items,
         "accommodation": travel.parse_yaml("accommodation", data_dir),
@@ -107,6 +113,11 @@ def build_trip_list(
         "events": travel.parse_yaml("events", data_dir),
     }
 
+    for item in data["accommodation"]:
+        price = item.get("price")
+        if price:
+            item["price"] = decimal.Decimal(price)
+
     for key, item_list in data.items():
         assert isinstance(item_list, list)
         for item in item_list: