Adjusted build watch and set explicit build order to adjust the build weird flakiness

[oskardudycz]

• ensured that the build watch is triggering related packages builds by using -b parameter,
• ensured the recommended sequential npm packages build to not risk the parallel build related issues,
• adjusted the eslint plugin settings to use the explicit folders instead of the automatic detection,
• Added the recommended extension lists, together with Install All Recommended Extensions to streamline the setup,
• updated contributing guide.