docs: add turkish translation for tutorials

[wralith]

I create a copy of en folder, renamed it to tr and made translation on that. This pr provides Turkish translations only for the tutorials section, since I've been warned for a major docs rewrite.

There are some translation decisions that i can't decide alone, so I need a feedback from Turkish speaking members of community. Especially on the question: should we translate some terms or leave them as they are if we consider their common usages? For example "component", "array", "wrap", "reactivity" etc. For now, I translated them in the way that felt most natural to me.