CLDC-4154: Update needs type dropdown title

as requested by CORE

config/locales/forms/2026/lettings/guidance.en.yml

@@ -69,5 +69,5 @@ en:
               </ul>"
 
           needs_type:
-            title: "What are the needs types?"
+            title: "What does each need type mean?"
             content: "General needs housing includes both self-contained and shared housing without support or specific adaptations.<br><br>Supported housing is housing with special design facilities or features targeted at a specific client group requiring support, for example housing designed for older people, sheltered accommodation, extra care housing. It can include direct access hostels, group homes, and purpose-built self-contained housing. We do not require CORE logs for residential care or nursing homes."