Add vitest for frontend testing

[deen13]

Short Description

This pull request configures vitest and adds a simple test as suggested in my review of deps/upgrade_webauthn_2_0.

Proposed Changes

• Added a test task to package.json
• Included required vitest dependency
• Implemented a simple test for URL and base64 encoding
• Configure vitest to ignore python dependencies
• Configure import/resolver to resolve imports correctly
• Add job to circleci workflow

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Pull Request Review Guidelines

[codeclimate]

Code Climate has analyzed commit c7a6d03 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 82.2% (0.0% change).

View more on Code Climate.

[JoeyStk]

Thank you a lot 🚀 I think this is a good step forward.

1. Small note: Once this PR is merged you can check the checkbox in our meta issue for tests.
2. I personally like vitest more than jest for our usecase. I think Jest has a lot of features that we don't need as we are web only and therefore I rather prefer the speed of vitest.
3. Lastly the reason why I don't approve yet. Do we need a dev tool for this? I'm kind of lost in the whole discussion about pre-commits and dev commands 😕 Once this question is answered I will approve this PR as it looks good to me so far :)

Special thanks for the dummy test. These things always help me to get started with a new feature :) In the mid-future we can remove it again, but for the beginning it's much appreciated (at least on my side) :)

[deen13]

@JoeyStk I've added a devtool and a pre-commit hook that calls it. ☺️

[JoeyStk]

I'm not an expert on this matter, but would like to move this forward.
To me this PR works. I didn't face issues when installing this and running the dev-tool. Thank you very much :)

[ulliholtgrave]

Thank you very much 👍 This really is an improvement! Could you squash the first two commits into one? Then, this is good to go :)