Add sql,scala playground and remove one scala playground (#8751)

* Added Scala cheatsheet

* Add blank lines

* Update resource name

Co-authored-by: Sharan J <50091666+shrn01@users.noreply.github.com>

* Correct ordering

* Add sql and scala playground,  remove non working scala fiddle link

* correct ordering

Co-authored-by: Sharan J <50091666+shrn01@users.noreply.github.com>

more/free-programming-playgrounds.md

@@ -296,7 +296,7 @@
 
 ### Scala
 
-* [ScalaFiddle.io](https://scalafiddle.io)
+* [JDoodle](https://www.jdoodle.com/compile-scala-online)
 * [Scastie](https://scastie.scala-lang.org)
 
 
@@ -315,6 +315,7 @@
 
 * [Extends Class](https://extendsclass.com/sqlite-browser.html)
 * [SQLFiddle](http://sqlfiddle.com)
+* [SQLite Online](https://sqliteonline.com)
 
 
 ### Svelte