Add embeds to AHelp relay (#11184)

Content.Shared/CCVar/CCVars.cs

@@ -250,9 +250,25 @@ namespace Content.Shared.CCVar
          * Discord
          */
 
+        /// <summary>
+        /// URL of the Discord webhook which will relay all ahelp messages.
+        /// </summary>
         public static readonly CVarDef<string> DiscordAHelpWebhook =
             CVarDef.Create("discord.ahelp_webhook", string.Empty, CVar.SERVERONLY);
 
+        /// <summary>
+        /// The server icon to use in the Discord ahelp embed footer.
+        /// Valid values are specified at https://discord.com/developers/docs/resources/channel#embed-object-embed-footer-structure.
+        /// </summary>
+        public static readonly CVarDef<string> DiscordAHelpFooterIcon =
+            CVarDef.Create("discord.ahelp_footer_icon", string.Empty, CVar.SERVERONLY);
+
+        /// <summary>
+        /// The avatar to use for the webhook. Should be an URL.
+        /// </summary>
+        public static readonly CVarDef<string> DiscordAHelpAvatar =
+            CVarDef.Create("discord.ahelp_avatar", string.Empty, CVar.SERVERONLY);
+
         /*
          * Suspicion
          */