feat: add primary image functionality to AdventureImage model and update related components

backend/server/adventures/migrations/0017_adventureimage_is_primary.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.0.8 on 2025-01-03 04:05
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('adventures', '0016_alter_adventureimage_image'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='adventureimage',
+            name='is_primary',
+            field=models.BooleanField(default=False),
+        ),
+    ]