Add help link to finding cookies guide

src/NzbDrone.Core/Indexers/Definitions/Gazelle/GazelleUserPassOrCookieSettings.cs

@@ -21,7 +21,7 @@ public class GazelleUserPassOrCookieSettings : GazelleSettings
 {
     private static readonly GazelleUserPassOrCookieValidator<GazelleUserPassOrCookieSettings> Validator = new ();
 
-    [FieldDefinition(4, Label = "Cookie", HelpText = "Use the Cookie field only if 2FA is enabled for your account, leave it empty otherwise.", Privacy = PrivacyLevel.Password)]
+    [FieldDefinition(4, Label = "Cookie", HelpText = "Use the Cookie field only if 2FA is enabled for your account, leave it empty otherwise.", HelpLink = "https://wiki.servarr.com/useful-tools#finding-cookies", Privacy = PrivacyLevel.Password)]
     public string Cookie { get; set; }
 
     public override NzbDroneValidationResult Validate()

src/NzbDrone.Core/Indexers/Definitions/TorrentRss/TorrentRssIndexerSettings.cs

@@ -28,7 +28,7 @@ namespace NzbDrone.Core.Indexers.Definitions.TorrentRss
         [FieldDefinition(0, Label = "Full RSS Feed URL", HelpTextWarning = "To sync to your apps you will need to include the 8000(Other) in the Sync Categories", HelpLink = "https://wiki.servarr.com/en/prowlarr/faq#can-i-add-any-generic-torrent-rss-feed")]
         public string BaseUrl { get; set; }
 
-        [FieldDefinition(1, Label = "Cookie", HelpText = "If your site requires a login cookie to access the RSS, you'll have to retrieve it via a browser.")]
+        [FieldDefinition(1, Label = "Cookie", HelpText = "If your site requires a login cookie to access the RSS, you'll have to retrieve it via a browser.", HelpLink = "https://wiki.servarr.com/useful-tools#finding-cookies")]
         public string Cookie { get; set; }
 
         [FieldDefinition(2, Type = FieldType.Checkbox, Label = "Allow Zero Size", HelpText="Enabling this will allow you to use feeds that don't specify release size, but be careful, size related checks will not be performed.")]

src/NzbDrone.Core/Indexers/Settings/CookieTorrentBaseSettings.cs

@@ -22,7 +22,7 @@ namespace NzbDrone.Core.Indexers.Settings
             Cookie = "";
         }
 
-        [FieldDefinition(2, Label = "Cookie", HelpText = "Site Cookie", Privacy = PrivacyLevel.Password)]
+        [FieldDefinition(2, Label = "Cookie", HelpText = "Site Cookie", HelpLink = "https://wiki.servarr.com/useful-tools#finding-cookies", Privacy = PrivacyLevel.Password)]
         public string Cookie { get; set; }
 
         public override NzbDroneValidationResult Validate()