Upgrade auto-save for surveys and forms

[ElviaBth]

🎩 What? Why?
Auto-save for surveys and forms.

📌 Related Issues
#/270 Upgrade 0.28 pending task 2.

📷 Screenshots

♥️ Thank you!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.46%. Comparing base (a851688) to head (84a83af).
Report is 41 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #280      +/-   ##
===========================================
- Coverage    96.02%   93.46%   -2.56%     
===========================================
  Files           97      125      +28     
  Lines         2440     3521    +1081     
===========================================
+ Hits          2343     3291     +948     
- Misses          97      230     +133     

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[microstudi]

@ElviaBth this PR needs more things

On one hand, it is introducing changes related to the integram chat, this should not be here (see some comments).

On the other hand, this feature is about saving temporary data on forms using the localstorage browser capabilities. This is done with the script "autosave.js" (which uses https://github.com/appleple/form-storage in a npm package).

You need to:

1. Upgrade the formstorage package (if possible) in package.json
2. Adapt the autosave.js file so it removes jQuery dependencies
3. Uncomment the import in the decidim_application.js file

Thanks!