feat: contact form and more edits

apps/pages/admin.py

@@ -1,6 +1,19 @@
 from django.contrib import admin
 
-from .models import DownloadItem, FAQEntry
+from .models import ContactSubmission, DownloadItem, FAQEntry
+
+
+@admin.register(ContactSubmission)
+class ContactSubmissionAdmin(admin.ModelAdmin):
+    list_display = ("name", "title", "email", "submitted_at", "is_read")
+    list_filter = ("is_read", "submitted_at")
+    search_fields = ("name", "title", "description", "email")
+    list_editable = ("is_read",)
+    readonly_fields = ("name", "title", "description", "email", "submitted_at")
+    fieldsets = (
+        (None, {"fields": ("name", "title", "email", "description")}),
+        ("Meta", {"fields": ("submitted_at", "is_read")}),
+    )
 
 
 @admin.register(FAQEntry)