feat: release rdbms on staging (#44576)

fix: unhide cert from settings page

fix: add cert variables where missing

fix: show token on settings page

feat: add challenges to certified user data

fix: stylize settings page a little bit

fix: only show rdbms when upcomingChanges = true

fix: relational databases -> relational database

curriculum/challenges/_meta/learn-bash-scripting-by-building-five-programs/meta.json

@@ -1,11 +1,11 @@
 {
   "name": "Learn Bash Scripting by Building Five Programs",
-  "isUpcomingChange": true,
+  "isUpcomingChange": false,
   "order": 3,
   "time": "5 hours",
   "template": "",
   "required": [],
-  "superBlock": "relational-databases",
+  "superBlock": "relational-database",
   "challengeOrder": [
     [
       "5f5904ac738bc2fa9efecf5a",