[Feature]: add providers & update sdk

[lucas-louis]

Description

• Update the SDK of aleph to the v3.2.0
• Change the generation of AES encryption key
• Change the encryption method by using :
  • Either the one of Aleph for the encryption of data into messages (by using the .encrypt & .decrypt method provided by the SDK)
  • Or the one of crypto for the encryption of the content of the file (by using the AES generated encryption key)

With this version, the upload & the share of any file (even files with headers) worked 🚀

⚠️ The addition of the providers is working, but we can't encrypt/ decrypt with it, because of the public key exposed by the providers (Metamask) ⚠️

Changes include

• Bugfix (non-breaking change that solves an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)

Breaking changes

Change the encryption method & the AES key generation.
⚠️ Old encrypted files could not be decrypted with the new system ⚠️

Checklist

• I have assigned this PR to myself
• I have added at least 1 reviewer
• I have added the needed labels
• I have linked this PR to an issue
• I have linked this PR to a milestone
• I have linked this PR to a project
• I have tested this code
• I have added / updated tests (unit / functionals / end-to-end / ...)
• I have updated the README and other relevant documents (guides...)
• I have added sufficient documentation both in code, as well as in the READMEs

[RezaRahemtola]

Also there are conflicts with the yarn.lock apparently 😬