[CHANGE] Small optimizations

Manager.App/Services/LibraryService.cs

@@ -228,7 +228,7 @@ public class LibraryService : ILibraryService
                 return ResultError.Error(e);
             }
             
-            if (context.Channels.Any(c => c.Id == innertubeChannel.Id))
+            if (channelResult.IsSuccess)
             {
                 context.Channels.Update(channelEntity);
             }

Manager.App/Services/System/ClientService.cs

@@ -107,7 +107,7 @@ public class ClientService(IServiceScopeFactory scopeFactory, ILogger<ClientServ
         }
 
         List<HttpCookieEntity> httpCookies = [];
-        httpCookies.AddRange(client.CookieContainer.GetAllCookies()
+        httpCookies.AddRange(client.CookieContainer.GetAllCookies().Where(c => c.Expires != DateTime.MinValue)
         .ToList()
         .Select(cookie => new HttpCookieEntity
         {

Manager.Data/Contexts/AuditInterceptor.cs

@@ -56,7 +56,7 @@ public class AuditInterceptor : SaveChangesInterceptor
                     break;
                 case EntityState.Modified:
                     audits.AddRange(allowedProperties
-                            .Where(p => p.IsModified)
+                            .Where(p => p.IsModified && !Equals(p.OriginalValue, p.CurrentValue))
                             .Select(p => CreateAudit(entry, p, entry.State, primaryKey))
                     );
                     break;