fix:add redirect for missing query in search view

If 'query' is not in the request GET parameters, the view now redirects to the homepage with an empty query string. This ensures users don't face errors when accessing the search page without a query parameter.

orp/orp_search/views.py

@@ -4,7 +4,7 @@
 
 from django.conf import settings
 from django.http import HttpRequest, HttpResponse
-from django.shortcuts import render
+from django.shortcuts import redirect, render
 from django.views.decorators.http import require_http_methods
 
 from core.forms import RegulationSearchForm
@@ -63,6 +63,9 @@ def search(request: HttpRequest) -> HttpResponse:
     during the Data API search, the service problem page is displayed.
     """
 
+    if "query" not in request.GET:
+        return redirect("/?query=")
+
     context = {
         "service_name": settings.SERVICE_NAME_SEARCH,
     }