[Feature] Default thread ratelimit in guild text channels (#2622)

* initial commit

* mocked bruh

src/Discord.Net.Core/Entities/Channels/ForumChannelProperties.cs

@@ -28,21 +28,6 @@ public class ForumChannelProperties : TextChannelProperties
     /// <exception cref="ArgumentOutOfRangeException">Thrown if the value does not fall within [0, 21600].</exception>
     public Optional<int> ThreadCreationInterval { get; set; }
 
-
-    /// <summary>
-    /// Gets or sets the default slow-mode for threads in this channel.
-    /// </summary>
-    /// <remarks>
-    ///     Setting this value to anything above zero will require each user to wait X seconds before
-    ///     sending another message; setting this value to <c>0</c> will disable slow-mode for child threads.
-    ///     <note>
-    ///         Users with <see cref="Discord.ChannelPermission.ManageMessages"/> or 
-    ///         <see cref="ChannelPermission.ManageChannels"/> will be exempt from slow-mode.
-    ///     </note>
-    /// </remarks>
-    /// <exception cref="ArgumentOutOfRangeException">Thrown if the value does not fall within [0, 21600].</exception>
-    public Optional<int> DefaultSlowModeInterval { get; set; }
-
     /// <summary>
     /// Gets or sets a collection of tags inside of this forum channel.
     /// </summary>

src/Discord.Net.Core/Entities/Channels/ITextChannel.cs

@@ -35,6 +35,15 @@ namespace Discord
         /// </returns>
         int SlowModeInterval { get; }
 
+        /// <summary>
+        /// Gets the current default slow-mode delay for threads in this channel.
+        /// </summary>
+        /// <returns>
+        ///     An <see cref="int"/> representing the time in seconds required before the user can send another
+        ///     message; <c>0</c> if disabled.
+        /// </returns>
+        int DefaultSlowModeInterval { get; }
+
         /// <summary>
         ///     Gets the default auto-archive duration for client-created threads in this channel.
         /// </summary>

src/Discord.Net.Core/Entities/Channels/TextChannelProperties.cs

@@ -45,5 +45,19 @@ namespace Discord
         /// </summary>
         public Optional<ThreadArchiveDuration> AutoArchiveDuration { get; set; }
 
+        /// <summary>
+        /// Gets or sets the default slow-mode for threads in this channel.
+        /// </summary>
+        /// <remarks>
+        ///     Setting this value to anything above zero will require each user to wait X seconds before
+        ///     sending another message; setting this value to <c>0</c> will disable slow-mode for child threads.
+        ///     <note>
+        ///         Users with <see cref="Discord.ChannelPermission.ManageMessages"/> or 
+        ///         <see cref="ChannelPermission.ManageChannels"/> will be exempt from slow-mode.
+        ///     </note>
+        /// </remarks>
+        /// <exception cref="ArgumentOutOfRangeException">Thrown if the value does not fall within [0, 21600].</exception>
+        public Optional<int> DefaultSlowModeInterval { get; set; }
+
     }
 }