Sealed a lot of classes that are not meant to be inherited

RGB.NET.Devices.Novation/Attributes/ColorCapabilityAttribute.cs

@@ -7,7 +7,7 @@ namespace RGB.NET.Devices.Novation.Attributes;
 /// Specifies the color-capability of a field.
 /// </summary>
 [AttributeUsage(AttributeTargets.Field)]
-public class ColorCapabilityAttribute : Attribute
+public sealed class ColorCapabilityAttribute : Attribute
 {
     #region Properties & Fields
 

RGB.NET.Devices.Novation/Attributes/DeviceIdAttribute.cs

@@ -7,7 +7,7 @@ namespace RGB.NET.Devices.Novation.Attributes;
 /// Specifies the device-id of a field.
 /// </summary>
 [AttributeUsage(AttributeTargets.Field)]
-public class DeviceIdAttribute : Attribute
+public sealed class DeviceIdAttribute : Attribute
 {
     #region Properties & Fields
 

RGB.NET.Devices.Novation/Attributes/LedIdMappingAttribute.cs

@@ -7,7 +7,7 @@ namespace RGB.NET.Devices.Novation.Attributes;
 /// Specifies the led id mapping of a field.
 /// </summary>
 [AttributeUsage(AttributeTargets.Field)]
-internal class LedIdMappingAttribute : Attribute
+internal sealed class LedIdMappingAttribute : Attribute
 {
     #region Properties & Fields