refactor: migrate About & Contact pages to SitePageSettings system

- About.razor: use SitePageSettingsService + GetSettings<AboutSettings>()
- About.razor.cs: read values/team from ImageGroups instead of SitePage sections
- Contact.razor: use SitePageSettingsService + GetSettings<ContactSettings>()
- Contact.razor.cs: read address/phone/email/social from SettingsJson

src/FrontOffice.Main/Pages/About.razor.cs

@@ -5,24 +5,22 @@ namespace FrontOffice.Main.Pages;
 public partial class About
 {
     private bool _loading = true;
-    private SitePageDto? _page;
-    private SitePageSectionDto? _visionSection;
-    private SitePageSectionDto? _missionSection;
-    private List<SitePageSectionDto> _valueSections = new();
-    private List<SitePageSectionDto> _teamSections = new();
+    private PageSettingsDto? _page;
+    private AboutSettings? _settings;
+    private List<PageSettingsImageDto> _valueImages = new();
+    private List<PageSettingsImageDto> _teamImages = new();
 
     protected override async Task OnInitializedAsync()
     {
         try
         {
-            _page = await SitePageService.GetByKeyAsync("about");
+            _page = await PageSettingsService.GetPageAsync("about");
 
             if (_page != null)
             {
-                _visionSection = _page.GetSection("vision");
-                _missionSection = _page.GetSection("mission");
-                _valueSections = _page.GetSections("value-").ToList();
-                _teamSections = _page.GetSections("team-").ToList();
+                _settings = _page.GetSettings<AboutSettings>();
+                _valueImages = _page.GetImages("values");
+                _teamImages = _page.GetImages("team");
             }
         }
         catch
@@ -34,4 +32,16 @@ public partial class About
             _loading = false;
         }
     }
+
+    private class AboutSettings
+    {
+        public string? VisionTitle { get; set; }
+        public string? VisionText { get; set; }
+        public string? VisionIcon { get; set; }
+        public string? MissionTitle { get; set; }
+        public string? MissionText { get; set; }
+        public string? MissionIcon { get; set; }
+        public string? ValuesTitle { get; set; }
+        public string? TeamTitle { get; set; }
+    }
 }