feat(academy): lesson about publishing to Apify Store

[honzajavorek]

HARD HAT AREA: WORK IN PROGRESS

TODO

• rebase once feat(academy): lesson about tests driven development #2849 is merged, because I'm lazy to learn about stacked PRs now despite the fact that Michał just told me about them
• write the rest of the sections, otherwise no money, no food
• make all linters happy, because their happiness is more important than mine
• add some imagery so it's not all just Millennial grey
• polish grammar and flow with AI before the Polish can see my Czenglish