feat: add Deskew PDF and Font to Outline tools with improved issue templates

New Features:
- Add Deskew PDF tool for straightening scanned/skewed PDF pages
- Add Font to Outline tool for converting text to vector paths
- Add translations for new tools in all supported locales (de, en, id, it, tr, vi, zh)

Improvements:
- Migrate GitHub issue templates from markdown to YAML forms
  - Separate templates for bug reports, feature requests, and questions
  - Add config.yml for issue template chooser
- Update sitemap.xml with new tool pages
- Update ghostscript loader and helper utilities

public/locales/it/tools.json

@@ -494,5 +494,13 @@
     "subtitle": "Converti file email (EML, MSG) in formato PDF. Supporta esportazioni Outlook e formati email standard.",
     "acceptedFormats": "File EML, MSG",
     "convertButton": "Converti in PDF"
+  },
+  "fontToOutline": {
+    "name": "Font in Contorni",
+    "subtitle": "Converti tutti i font in contorni vettoriali per una visualizzazione coerente su tutti i dispositivi."
+  },
+  "deskewPdf": {
+    "name": "Raddrizza PDF",
+    "subtitle": "Raddrizza automaticamente le pagine scansionate inclinate usando OpenCV."
   }
 }