Attempt at N4 to add JavaScript into Code Editor

[bensohh]

• Attempt at N4 which works with a success notification for both users when code language changes
• Add localStorage.clear() method back for logging out
• Remove and replaced previous implementation of the autolanguage

TODO:

• Link the frontend method to change the executing container based on selected editor language
  (p.s: Note that the current editor's language is stored in localStorage with key value "editor-language" so you can access there or via the selectedLanguage useState within the CollaborativeEditor component)
  @tituschewxj @solomonng2001 @UnwilledTangent

[UnwilledTangent]

lgtm

[UnwilledTangent]

wait, are we able to submit code? with reference to the picture

[UnwilledTangent]

lgtm