Add system setting table with cache and also add cache supports for user setting (#18058)

options/locale/locale_en-US.ini

@@ -2879,6 +2879,9 @@ config.access_log_template = Template
 config.xorm_log_mode = XORM Log Mode
 config.xorm_log_sql = Log SQL
 
+config.get_setting_failed = Get setting %s failed
+config.set_setting_failed = Set setting %s failed
+
 monitor.cron = Cron Tasks
 monitor.name = Name
 monitor.schedule = Schedule