refactor: Setup eslint and fix issues (WIP)

[miquelbeltran]

Description 📝

Setup eslint in the project, including applying static analysis and formatting.

Draft to check how GitHub Actions is responding to it.

Type of change

• New feature (non-breaking change which adds functionality)

Updates

• Setup eslint in the project.
• Remove tslint dependencies.
• Setup the npm run eslint command.
• Setup GitHub Actions to run npm run eslint as part of the PR.

Test plan 🧪

• code tests should still run and pass
• npm run eslint should return no warnings
• run the examples in the examples folder

Author to check 👓

• Project and all contained modules builds successfully
• Self-/dev-tested
• Unit/UI/Automation/Integration tests provided where applicable
• Code is written to standards
• Appropriate documentation written (code comments, internal docs)

Reviewer to check ✔️

• Project and all contained modules builds successfully
• Change has been dev-/reviewer-tested, where possible
• Unit/UI/Automation/Integration tests provided where applicable
• Code is written to standards
• Appropriate documentation written (code comments, internal docs)