Create default solana acc when create\restore the wallet

[cypt4]

Resolves brave/brave-browser#25432

Submitter Checklist:

• I confirm that no security/privacy review is needed, or that I have requested one
• There is a ticket for my issue
• Used Github auto-closing keywords in the PR description above
• Wrote a good PR/commit description
• Squashed any review feedback or "fixup" commits before merge, so that history is a record of what happened in the repo, not your PR
• Added appropriate labels (QA/Yes or QA/No; release-notes/include or release-notes/exclude; OS/...) to the associated issue
• Checked the PR locally: npm run test -- brave_browser_tests, npm run test -- brave_unit_tests, npm run lint, npm run gn_check, npm run tslint
• Ran git rebase master (if needed)

Reviewer Checklist:

• A security review is not needed, or a link to one is included in the PR description
• New files have MPL-2.0 license header
• Adequate test coverage exists to prevent regressions
• Major classes, functions and non-trivial code blocks are well-commented
• Changes in component dependencies are properly reflected in gn
• Code follows the style guide
• Test plan is specified in PR before merging

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on
• All relevant documentation has been updated, for instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-Compatibility-Exceptions-in-Brave
  • https://github.com/brave/brave-browser/wiki/QA-Guide
  • https://github.com/brave/brave-browser/wiki/P3A

Test Plan:

For desktop, android and ios:
Enable BraveWalletSolana feature with create-default-solana-account = true
On android and desktop:

1. Create new wallet and check that Solana acc is created, default coin is Solana, and default network is Solana mainnet beta.
2. Restore wallet and check same conditions.
3. Check lock& restore case.
4. Check that if wallet was created before the update, solana won't be choosed as default and no solana account won't be created after the update.
   Enable BraveWalletSolana feature with create-default-solana-account = false
5. Check that there is no solana acc after wallet creation&restoration

[yrliou]

FYI, I saw there are test failures in solana_provider_browsertest.cc, you probably need to adjust the feature param there too as that file assumes no solana accounts were created.

[darkdh]

++

[srirambv]

Verification passed on

Brave	1.45.62 Chromium: 106.0.5249.40 (Official Build) nightly (64-bit)
Revision	fab1d91915d2722d6339aaa7f4e9ce44f1e9b103-refs/branch-heads/5249@{#442}
OS	Windows 11 Version 21H2 (Build 22000.978)

• Verified steps from PR
• Verified Solana network is set as active network for new wallet or restored wallet
• Verified first Solana account generated for the seed is set as the active account for new wallet or restored wallet
• Verified on upgrade from previous build, Solana isn't set as active network
• Verified on upgrade from previous build with Solana account created doesn't make it the active account unless it was set as active before upgrade
• Encountered Tooltips are not correctly shown brave-browser#25495

15125.mp4

[srirambv]

Verification passed on Oppo Reno 5 with Android 12 running 1.45.64 x64 build

• Verified steps from PR
• Verified Solana network is set as active network for new wallet or restored wallet
• Verified first Solana account generated for the seed is set as the active account for new wallet or restored wallet
• Verified on upgrade from previous build, Solana isn't set as active network
• Verified on upgrade from previous build with Solana account created doesn't make it the active account unless it was set as active before upgrade
• Verified no crash when creating new wallet
• Verified Solana account is selected after account creation

15125-ARM.mp4