docs: change .eslintrc.js to eslint.config.js (#12317)

Author: BrunoMollo

documentation/docs/10-getting-started/30-project-structure.md

@@ -30,7 +30,7 @@ my-project/
 └ vite.config.js
 ```
 
-You'll also find common files like `.gitignore` and `.npmrc` (and `.prettierrc` and `.eslintrc.cjs` and so on, if you chose those options when running `npm create svelte@latest`).
+You'll also find common files like `.gitignore` and `.npmrc` (and `.prettierrc` and `eslint.config.js` and so on, if you chose those options when running `npm create svelte@latest`).
 
 ## Project files