Setup testing framework

[robertu7]

Tasks

• [x] Remove current testing framework: Cucumber, Nightwatch, Jest, etc.;
• [x] Setup testing framework;
• [ ] Integrate to CI/CD;
• [x] Write basic test cases (provided by @devformatters);

Scope

• matters-web

[devformatters]

@Jasmine-liang Making smaller PRs is better for changes review.

[Jasmine-liang]

CI integration ref: Adding Playwright tests into the GitHub pipeline