update trade acceptance styling and layout, and also trade acceptance update/details page. fixes #16

cards/migrations/0001_initial.py

@@ -1,4 +1,4 @@
-# Generated by Django 5.1.2 on 2025-04-08 06:24
+# Generated by Django 5.1.2 on 2025-04-13 05:10
 
 import django.db.models.deletion
 from django.db import migrations, models

cards/templatetags/card_badge.py

@@ -28,4 +28,9 @@ def card_badge_inline(card, quantity=None):
         'cardset': card.cardset,
         'expanded': True,
     })
-    return mark_safe(html)
+    return mark_safe(html)
+
+@register.filter
+def addstr(arg1, arg2):
+    """concatenate arg1 & arg2"""
+    return str(arg1) + str(arg2)