feat(GuildMember): add method to check timeout (#7146)

Co-authored-by: Jiralite <33201955+Jiralite@users.noreply.github.com>
Co-authored-by: Vlad Frangu <kingdgrizzle@gmail.com>

src/structures/GuildMember.js

@@ -303,6 +303,14 @@ class GuildMember extends Base {
     return this.manageable && (this.guild.me?.permissions.has(Permissions.FLAGS.MODERATE_MEMBERS) ?? false);
   }
 
+  /**
+   * Whether this member is currently timed out
+   * @returns {boolean}
+   */
+  isCommunicationDisabled() {
+    return this.communicationDisabledUntilTimestamp > Date.now();
+  }
+
   /**
    * Returns `channel.permissionsFor(guildMember)`. Returns permissions for a member in a guild channel,
    * taking into account roles and permission overwrites.