Extend "Getting started" page with common software setups

[MichaIng]

Add short descriptions about often chosen software stacks, like Pi-hole + Unbound or Nextcloud + Talk + DietPi-LetsEncrypt or a Media + local file server stack.

Check https://dietpi.com/survey/#software for often used software titles.

[StephanStS]

@MichaIng: Since we introduced our DietPi blog about two years ago, these "typical applications" are described within blog posts.

So I propose to close this issue.

[MichaIng]

You are right. What we could do instead is linking the related blog posts from the software docs, e.g. the Pi-hole blog posts in Pi-hole docs section etc. What do you think?