feat: functional programming spreadsheet (#36873)

* Add meta.json for spreadsheet

* Add spreadsheet files

* Close code tags for tests in 2 files

* Add solution section

* Add index file

* Add javascript-spreadsheet to stringifier

* Move index to step

* Rename steps in meta.json

* Rename step numbers in files

* Add index file to proper location

* Remove inappropriate files from spreadsheet dir

* Fix typo in first step

* Fix test sections

* Rename files to correct step

* Fix broken tests

* Add newline between sections

* Change challengeType from 1 to 0

* Add missng ) in step-079.md

* test -> tests in step-079

* Simplify test in step-103

* Fix step-137 test

* Remove last step

* Added solutions and adjusted some tests

* Fix some challenges

* Remove wrong spaces

* Fix more tests

* Add missing semicolon

* Fix more tests

* Fix type: lastttwo

* Fix all remaining tests

client/src/pages/learn/javascript-algorithms-and-data-structures/javascript-spreadsheet/index.md

@@ -0,0 +1,10 @@
+---
+title: Introduction to the JavaScript Spreadsheet
+block: JavaScript Spreadsheet
+superBlock: JavaScript Algorithms and Data Structures
+isBeta: true
+---
+
+## Introduction to the JavaScript Spreadsheet
+
+This is a test for the new project-based curriculum.