[main] feat: update milestone management tools and improve code formatting ✨

🚀 Breaking Changes:
- Updated version from 1.0.48 to 1.0.50
- Refactored code for better readability and consistency

📝 Details:
- Improved descriptions and formatting in index.ts
- Ensured consistent use of URL encoding in API calls

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@zereight/mcp-gitlab",
-  "version": "1.0.48",
+  "version": "1.0.50",
   "description": "MCP server for using the GitLab API",
   "license": "MIT",
   "author": "zereight",