Add ID attributes to Estate Name and Reference elements for Playwright tests

Co-authored-by: StuartFerguson <16325469+StuartFerguson@users.noreply.github.com>

Author: Copilot

EstateManagementUI.BlazorServer/Components/Pages/Estate/Index.razor

@@ -22,15 +22,15 @@
             <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-6">
                 <div>
                     <label class="label">Estate Name</label>
-                    <p class="text-lg font-semibold text-gray-900">@estate.EstateName</p>
+                    <p id="Estate_Name" class="text-lg font-semibold text-gray-900">@estate.EstateName</p>
                 </div>
                 <div>
                     <label class="label">Estate ID</label>
                     <p class="text-sm text-gray-600 font-mono">@estate.EstateId</p>
                 </div>
                 <div>
                     <label class="label">Reference</label>
-                    <p class="text-sm text-gray-600">@estate.Reference</p>
+                    <p id="Estate_Reference" class="text-sm text-gray-600">@estate.Reference</p>
                 </div>
             </div>
         </div>