On-ramp: Use dynamic list of networks

[wachunei]

Development & PR Process

1. Follow MetaMask Mobile Coding Standards
2. Add release-xx label to identify the PR slated for a upcoming release (will be used in release discussion)
3. Add needs-dev-review label when work is completed
4. Add needs-qa label when dev review is completed
5. Add QA Passed label when QA has signed off

Description

This PR adopts a dynamic list of supported networks for the on-ramp aggregator.

• on-ramp-sdk is updated to version 1.12.0, this version includes getNetworks method
• allowedToBuy method and hardcoded list was removed
• useOnRampNetworks hook is added, it updates the networks on the state with the result of getNetworks
  • This update is done on mount and on network change
• useOnRampNetwork hook and util functions are added to replace allowedToBuy

Screenshots/Recordings

If applicable, add screenshots and/or recordings to visualize the before and after of your change

Issue

Progresses #???

Checklist

• There is a related GitHub issue
• Tests are included if applicable
• Any added code is fully documented

[socket-security]

New dependency changes detected. Learn more about Socket for GitHub ↗︎

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👍 No new dependency issues detected in pull request

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Pull request alert summary

Issue	Status
Install scripts	✅ 0 issues
Native code	✅ 0 issues
Bin script shell injection	✅ 0 issues
Unresolved require	✅ 0 issues
Invalid package.json	✅ 0 issues
HTTP dependency	✅ 0 issues
Git dependency	✅ 0 issues
Potential typo squat	✅ 0 issues
Known Malware	✅ 0 issues
Telemetry	✅ 0 issues
Protestware/Troll package	✅ 0 issues

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📊 Modified Dependency Overview:

⬆️ Updated Package	Version Diff	Added Capability Access	+/- Transitive Count	Publisher
@consensys/on-ramp-sdk@1.12.0	1.9.1...1.12.0	None	+0/-0	klejeune-consensys

[wachunei]

@bkirb can you confirm this is QAd please 🙏

[bkirb]

@wachunei I verified this PR and made several orders with different tokens and chains.

[sethkfman]

@wachunei Can you resolve the conflicts on this PR?

[wachunei]

what conflicts? 😜 just did lol

[Cal-L]

LGTM