Rewrite:stepper Fix frontend to be compatible with js-slang rewrite/stepper (#3125)

* (feat) [skip ci] integrate with js-slang stepper/rewrite

* (feat) [skip ci] integrate with js-slang stepper/rewrite

* (feat) add custom ast renderer from scratch

* (feat) add custom ast renderer from scratch

* feat: add mu term handler

* chore: refactoring

* chore: lint fix

* fix: fix parenthesis issue and multiline block expression

* fix: format fix

* fix: add logical expression handler

* Fix incorrect merge conflict resolution

* Fix lint

* fix: add language option for js slang helper

* bumping js-slang

* fix: visual bugs

* fix: add key to jsx element

* bumping js-slang

---------

Co-authored-by: Martin Henz <henz@comp.nus.edu.sg>
Co-authored-by: Richard Dominick <34370238+RichDom2185@users.noreply.github.com>

Author: 3 people

package.json

@@ -58,7 +58,7 @@
     "i18next-browser-languagedetector": "^8.0.0",
     "java-slang": "^1.0.13",
     "js-cookie": "^3.0.5",
-    "js-slang": "^1.0.82",
+    "js-slang": "^1.0.84",
     "js-yaml": "^4.1.0",
     "konva": "^9.2.0",
     "language-directory": "https://github.com/source-academy/language-directory.git",