- add Roman Numeral Converter to sidebar.html and tools.json, add screenshot

Author: TobiasMue91

data/tools.json

@@ -1373,5 +1373,16 @@
     "aiPowered": false,
     "featured": false,
     "date": "2025-05-01"
+  },
+  {
+    "id": "roman_numeral_converter",
+    "title": "Roman Numeral Converter",
+    "description": "Convert between Roman numerals and standard numbers.",
+    "url": "tools/roman_numeral_converter.html",
+    "screenshot": "screenshots/screenshot_180.png",
+    "type": "tool",
+    "aiPowered": false,
+    "featured": false,
+    "date": "2025-05-03"
   }
 ]

screenshots/screenshot_180.png

@@ -265,6 +265,7 @@ <h2>Tools by ChatGPT</h2>
       <li><a href="/games/color_guessing_game.html">Color Guessing Game</a></li>
       <li><a href="/tools/code_minifier.html">Code Minifier</a></li>
       <li><a href="/games/emoji_match_three.html">Emoji Match 3</a></li>
+      <li><a href="/tools/roman_numeral_converter.html">Roman Numeral Converter</a></li>
 <!-- end -->
     </ul>
   </div>