Update it.yaml

- Replaced "astroturfer" with a description of the phenomenon as the term is not well known (it does not even register in Google Ngram).
- Replaced "narrativa" with "narrazione". Narrativa is a literary genre (i.e. narration)

Author: va-it

src/i18n/locales/it.yaml

@@ -171,7 +171,7 @@ act_regulators: "**[Contatta le autorità di regolamentazione.](/cta/#consumers)
 # [en] act_share: "**Share this page.** Link to [keepandroidopen.org](https://keepandroidopen.org) everywhere."
 act_share: "**Condividi questa pagina.** Pubblica ovunque il link a [keepandroidopen.org](https://keepandroidopen.org)."
 # [en] act_astroturf: "**Push back on astroturfers.** The \"well, actually...\" crowd is out in force. Don't let them set the narrative."
-act_astroturf: "**Contrasta gli astroturfer.** La folla del \"beh, in realtà...\" è all'opera. Non lasciare che siano loro a dettare la narrativa."
+act_astroturf: "**Respingi le finte mobilitazioni dal basso.** La folla del \"beh, in realtà...\" è all'opera. Non lasciare che siano loro a dettare la narrazione."
 # [en] act_petition: "**[Sign the change.org petition](https://www.change.org/p/stop-google-from-limiting-apk-file-usage/)** and join the over 100,000 signatories who have made their voices heard."
 act_petition: "**[Firma la petizione su change.org](https://www.change.org/p/stop-google-from-limiting-apk-file-usage/)** e unisciti agli oltre 100.000 firmatari che hanno fatto sentire la propria voce."
 # [en] act_letter: "**[Read and share our open letter](/open-letter)**"