Enhanced Discord Support (#7005)

* Add Discord Provider Prototype

* Add Discord Logo

* Add Plugin to Plugin Manager

* fixed discord auth support and added icon

* add csv role verification

* grab discord server icon and test server id and roles

* subdomain derived from server name

* use discord server specific nickname if available

* Cleanup and comment

* move discord api types to dev deps

* cleanup of server vs default params

* remove commented out lines

* revert envv.development

* revert in vscode

* update yarn lock

* add gif support for discord server icon

* add comment with docs link

* add env section for discord

* fix errors and clarify env

* add new cannot use without

* fix suggestions

plugins/discord/server/errors.ts

@@ -0,0 +1,17 @@
+import httpErrors from "http-errors";
+
+export function DiscordGuildError(
+  message = "User is not a member of the required Discord server"
+) {
+  return httpErrors(400, message, {
+    id: "discord_guild_error",
+  });
+}
+
+export function DiscordGuildRoleError(
+  message = "User does not have the required role from the Discord server"
+) {
+  return httpErrors(400, message, {
+    id: "discord_guild_role_error",
+  });
+}