Release/v3

[DarkoKukovec]

Please select all that apply:

• [ ] This PR contains a new feature
• [x] This PR updates an existing feature
• [ ] This PR contains bugfixes
• [x] This PR contains all the relevant tests
• [x] This PR creates a breaking change

Please describe the differences between the current and new behavior:

Removes dependency from mobx, basically same as v2 with disable-mobx, but without extra config steps.

Once ready, it should be merged, but the branch should not be deleted.

TODO:

• [x] Fix the build step (flaky)
• [x] Verify all tests work
• [x] Fix checks
• [x] Fix SonarCloud issues

[DarkoKukovec]

@fvoska @isBatak there are a lot of changes here and I don't think it makes sense to go through all of them. This is more of a sanity check, if you see any issues (you can focus more on angular and swr).

SonarCloud detected a bunch of code smells, but they're not new - they have been surfaced when I fixed linter issues. Since I don't see anything critical there, I would ignore them for now as not to block the release.

[sonarcloud[bot]]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
102 Code Smells

No Coverage information
6.9% Duplication

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