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>

src/server/game/Scripting/ScriptMgr.h

@@ -166,7 +166,7 @@ public: /* WorldScript */
     void OnBeforeConfigLoad(bool reload);
     void OnAfterConfigLoad(bool reload);
     void OnBeforeFinalizePlayerWorldSession(uint32& cacheVersion);
-    void OnMotdChange(std::string& newMotd);
+    void OnMotdChange(std::string& newMotd, LocaleConstant& locale);
     void OnShutdownInitiate(ShutdownExitCode code, ShutdownMask mask);
     void OnShutdownCancel();
     void OnWorldUpdate(uint32 diff);