fix(ui): ns8 module maintenance

[andre8244]

NS8 module maintenance.

• chore(ui): update module default logo
• chore(ui): remove unwanted VS Code extensions from devcontainer
• build(ui): tune webpack chunk size and silence sass deprecations
• chore(ui): disable no-console eslint rule
• test(ui): import Browser inside the Take screenshots test
• build: require core >= 3.20.1
• build(ui): update axios
• build(ui): update Vue to 2.7
• build(ui): update ns8-ui-lib to latest 2.x
• style(ui): format code with prettier

Ref:

• Upgrade Vue to latest 2.7.x on NS8 modules dev#8112

[stephdl]

workable with 3.20.1