feat(extension): add sandbox for running smart contracts

[mrcnk]

Describe changes

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Review checklist

• [ ] Proper documentation added
• [ ] Proper tests added

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[deepsource-io[bot]]

Here's the code health analysis summary for commits 568fd80..ab88eb0. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success	❗ 19 occurences introduced 🎯 10 occurences resolved	View Check ↗

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[mrcnk]

Continued in https://github.com/palladians/pallad/pull/221