General Improvements

[evertonlperes]

General improvements and opportunities after moved from Spectron to Playwrigth:

• [ ] Clobber RD Settings instead having it write/read from disk (rely on process.env.NODE_ENV=test).
• [x] Improve main.e2e.spec.ts, including more assertions and validations. Blocked by #1317
• [ ] Bypass networking root access password input on TEST mode (dockerd only). - Could be fixed by #1224
• [ ] Alternative way to detect if the app was loaded properly (don't rely on .progress be detached or hidden). - Blocked by #1217
• [x] Improve TestUtils with more global methods.

[IsaSih]

E2e topics have already been covered. Remaining issues related to enhancements only