refactor jellyfish-wallet-encrypted encryption layer

[fuxingloh]

What kind of PR is this?:

/kind refactor

What this PR does / why we need it:

Refactor jellyfish-wallet-encrypted encryption layer for a clearer inheritance for consumer implementation.

This removes storage & provider for re-implementation at wallet layer. To keep concerns separated as encryption layer should not handle storage.

[qlty-cloud-legacy]

Code Climate has analyzed commit dced4b9 and detected 0 issues on this pull request.

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[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
packages/jellyfish/dist/index.umd.js	21.37 KB (0%)	428 ms (0%)	193 ms (-2.06% 🔽)	620 ms

[codecov]

Codecov Report

Merging #477 (dced4b9) into main (9f1536d) will decrease coverage by 0.01%.
The diff coverage is 94.20%.

@@            Coverage Diff             @@
##             main     #477      +/-   ##
==========================================
- Coverage   97.49%   97.48%   -0.02%     
==========================================
  Files         103      103              
  Lines        3038     3020      -18     
  Branches      380      380              
==========================================
- Hits         2962     2944      -18     
  Misses         76       76              

Impacted Files	Coverage Δ
packages/jellyfish-wallet-encrypted/src/scrypt.ts	93.65% <93.65%> (ø)
packages/jellyfish-crypto/src/aes256.ts	100.00% <100.00%> (ø)
packages/jellyfish-wallet-encrypted/src/index.ts	100.00% <100.00%> (ø)
...ish-wallet-encrypted/src/provider/scrypt_simple.ts	100.00% <100.00%> (ø)

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