add application details view and update related forms; improve layout

gatekeeper/migrations/0004_alter_gatekeeperipaddress_prefix_length.py

@@ -0,0 +1,18 @@
+# Generated by Django 5.2.12 on 2026-03-12 21:39
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('gatekeeper', '0003_alter_authmethodalloweddomain_auth_method_and_more'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='gatekeeperipaddress',
+            name='prefix_length',
+            field=models.PositiveSmallIntegerField(blank=True, null=True),
+        ),
+    ]