feat: Integrate VTS functionality and improve emoji response system

- Added VTSList function to read and process Excel file for V.T.S. entries.
- Implemented isVTS function to check if a given date is in the VTS list.
- Updated CreateImage class to conditionally display "with V.T.S." based on VTS status.
- Enhanced NameToEmoji function's prompt for clarity and formatting.
- Added exceljs dependency for Excel file handling.
- Modified playground.ts for testing VTS functionality.

app/package.json

@@ -15,6 +15,7 @@
     "@azure/core-sse": "^2.2.0",
     "@napi-rs/canvas": "^0.1.70",
     "cheerio": "^1.0.0",
+    "exceljs": "^4.4.0",
     "igramapi": "^1.48.3",
     "inquirer": "^12.6.0"
   }