docs: add sebbalex as a contributor for code, doc, and bug (#189)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

Author: allcontributors[bot]

.all-contributorsrc

@@ -166,6 +166,17 @@
         "code",
         "bug"
       ]
+    },
+    {
+      "login": "sebbalex",
+      "name": "Alessandro Sebastiani",
+      "avatar_url": "https://avatars.githubusercontent.com/u/11008116?v=4",
+      "profile": "https://developers.italia.it",
+      "contributions": [
+        "code",
+        "doc",
+        "bug"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -104,6 +104,9 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
       <td align="center" valign="top" width="14.28%"><a href="https://www.riccardovettore.dev"><img src="https://avatars.githubusercontent.com/u/108279675?v=4?s=100" width="100px;" alt="Riccardo Vettore"/><br /><sub><b>Riccardo Vettore</b></sub></a><br /><a href="https://github.com/qwikifiers/qwik-ui/commits?author=riccardo-vettore" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/KenAKAFrosty"><img src="https://avatars.githubusercontent.com/u/90424167?v=4?s=100" width="100px;" alt="Ken aka Frosty"/><br /><sub><b>Ken aka Frosty</b></sub></a><br /><a href="https://github.com/qwikifiers/qwik-ui/commits?author=KenAKAFrosty" title="Code">💻</a> <a href="https://github.com/qwikifiers/qwik-ui/issues?q=author%3AKenAKAFrosty" title="Bug reports">🐛</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://developers.italia.it"><img src="https://avatars.githubusercontent.com/u/11008116?v=4?s=100" width="100px;" alt="Alessandro Sebastiani"/><br /><sub><b>Alessandro Sebastiani</b></sub></a><br /><a href="https://github.com/qwikifiers/qwik-ui/commits?author=sebbalex" title="Code">💻</a> <a href="https://github.com/qwikifiers/qwik-ui/commits?author=sebbalex" title="Documentation">📖</a> <a href="https://github.com/qwikifiers/qwik-ui/issues?q=author%3Asebbalex" title="Bug reports">🐛</a></td>
+    </tr>
   </tbody>
 </table>