Add template selection and multiple copy printing features

- Implemented template selection: type 0=OK (green), type 1=NOK (red)
- Added multiple copy printing (1-100 copies)
- Extended file format to 5 fields: ARTICLE;NR_ART;SERIAL;TYPE;COUNT
- Created OK/NOK SVG templates with visual distinction
- Fixed PDF landscape orientation issues
- Updated SumatraPDF to use noscale for exact dimensions
- Auto-generate conf folder with default templates on first run
- Made pystray optional for system tray functionality
- Updated build scripts for Python 3.13 compatibility (Kivy 2.3+, PyInstaller 6.18)
- Added comprehensive build documentation
- Improved printer configuration guidance

.gitignore

@@ -1,6 +1,12 @@
 label/
 build/
+dist/
 logs/
 pdf_backup/
 venv/
-
+__pycache__/
+*.pyc
+*.pyo
+*.spec
+*.egg-info/
+.eggs/