feat(Core/Motd): Allow localized motd (#20542)

* Initial commit for localized motd

* Rename function that created world packages

* Update to satisfy code check

* Update code to accomodate localized motd

* Update command to support multiple optionales & adjusted db

* Code cleanup

* Update sql name

* Fix codestyle issues

* Remove hardcoded schema

* Add check for valid player in reload command

* Update to better code style

* Add missing include

* Fix redundant code usage

* Add missing include

* Remove sql files and create new rev sql files

* Address minor code reviews

* Fix code style

* Update code to address code revisions.

- Remove two unused functions
- Remove map
- Use available function to resolve LocaleConstant

* Fix code style

* Add check for base motd and update locale to DEFAULT_LOCALE

* Code docs

* Removed some docs, readd defaultd motd formatting

* Fix oversight in variable declaration

* Code style fix

* Update code based on code review

* ready for merge

* Fix set motd command due to changes to DEFAULT_LOCALE

* Fix CI

* Fix trailing whitespace

---------

Co-authored-by: Kitzunu <24550914+Kitzunu@users.noreply.github.com>

data/sql/updates/pending_db_auth/rev_1731984288401879600.sql

@@ -0,0 +1,10 @@
+CREATE TABLE IF NOT EXISTS `motd_localized` (
+  `realmid` INT,
+  `locale` VARCHAR(4) NOT NULL COLLATE 'utf8mb4_unicode_ci',
+  `text` LONGTEXT NULL DEFAULT NULL COLLATE 'utf8mb4_unicode_ci',
+  PRIMARY KEY (`realmid`, `locale`)
+)
+CHARSET = utf8mb4
+COLLATE = utf8mb4_unicode_ci
+ENGINE = InnoDB
+;

data/sql/updates/pending_db_world/rev_1731983948814732800.sql

@@ -0,0 +1,4 @@
+--
+UPDATE `command` SET `help` = 'Syntax: .server set motd Optional($realmId) Optional($locale) $MOTD\r \r Set server Message of the day for the specified $realmId.\r If $realmId is not provided it will update for the current realm. \r Use $realmId -1 to set motd for all realms. If $locale is not provided enUS will be used.' WHERE (`name` = 'server set motd');
+
+UPDATE `acore_string` SET `content_default` = 'Message of the day in realm {} and locale {} changed to:\r {}', `locale_deDE` = 'Nachricht des Tages für Realm {} und Sprache {} wurde geändert zu:\r {}', `locale_zhCN` = '每日消息更改为 in realm {} and locale {}:\r {}' WHERE (`entry` = 1101);