[FEAT] Wire up eslint and stylelint tasks into PRs

[AlanLes]

Is your feature request related to a problem? Please describe.

I recently noticed that no one seems to have run eslint or stylelint tasks for a long time. Both throws a lot of errors; the first is 100+, the second is 16. It would be good to connect it to some pipelines; otherwise, why do we need it?

Describe the solution you'd like

• Wire the eslint and stylelint to the Github Actions or another pipeline-ish thing.
• Fix all the existing problems/errors or reconsider existing rules and their importance.

What are acceptance criteria?

• No errors when running eslint and stylelint tasks locally.
• eslint and stylelint tasks are running behind the scenes along with the vue-tsc on github PR