Enhance audit logging: add new audit types for password reset and prospect image actions, and update related services to log these events

Co-authored-by: Copilot <copilot@github.com>

FoodsharingSiegen.Server/Data/Service/UserService.cs

@@ -151,8 +151,14 @@ namespace FoodsharingSiegen.Server.Data.Service
 
                 if (saveR < 1) return new(new Exception("Fehler beim Speichern"));
 
-                var auditData = CurrentUser?.Id == user.Id ? "sich selbst" : user.Mail;
-                await AuditService.Insert(AuditType.SetUserPassword, auditData);
+                if (CurrentUser?.Id == user.Id)
+                {
+                    await AuditService.Insert(AuditType.ChangeOwnPassword);
+                }
+                else
+                {
+                    await AuditService.Insert(AuditType.SetUserPassword, user.Mail);
+                }
 
                 return new();
             }