Add privileged desynced client global variables (#9138)

* Fix text setting in marker control

* Fix marker and bridge calculation game crashes, minor marker instruction code fixes

* Add privileged desynced client constant global variables

* Remove broken attempt to not initialize client vars on server

* Make @clientLocale variable non-constant, make @server and @client privileged

core/src/mindustry/ui/dialogs/LanguageDialog.java

@@ -78,6 +78,7 @@ public class LanguageDialog extends BaseDialog{
                 if(getLocale().equals(loc)) return;
                 Core.settings.put("locale", loc.toString());
                 Log.info("Setting locale: @", loc.toString());
+                player.locale = loc.toString();
                 ui.showInfo("@language.restart");
             });
             langs.add(button).group(group).update(t -> t.setChecked(loc.equals(getLocale()))).size(400f, 50f).row();