add dennissergeev as a contributor for ideas (#930)

* update CONTRIBUTORS.md

* update .all-contributorsrc

---------

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

.all-contributorsrc

@@ -149,7 +149,8 @@
       "profile": "https://dennissergeev.github.io/",
       "contributions": [
         "bug",
-        "promotion"
+        "promotion",
+        "ideas"
       ]
     },
     {

CONTRIBUTORS.md

@@ -10,7 +10,7 @@
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/bjlittle"><img src="https://avatars.githubusercontent.com/u/2051656?v=4?s=100" width="100px;" alt="Bill Little"/><br /><sub><b>Bill Little</b></sub></a><br /><a href="#maintenance-bjlittle" title="Maintenance">🚧</a> <a href="#infra-bjlittle" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/bjlittle/geovista/commits?author=bjlittle" title="Documentation">📖</a> <a href="https://github.com/bjlittle/geovista/commits?author=bjlittle" title="Code">💻</a> <a href="https://github.com/bjlittle/geovista/issues?q=author%3Abjlittle" title="Bug reports">🐛</a> <a href="https://github.com/bjlittle/geovista/pulls?q=is%3Apr+reviewed-by%3Abjlittle" title="Reviewed Pull Requests">👀</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/ChristmasZCY"><img src="https://avatars.githubusercontent.com/u/61818189?v=4?s=100" width="100px;" alt="Christmas"/><br /><sub><b>Christmas</b></sub></a><br /><a href="https://github.com/bjlittle/geovista/issues?q=author%3AChristmasZCY" title="Bug reports">🐛</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/djhoese"><img src="https://avatars.githubusercontent.com/u/1828519?v=4?s=100" width="100px;" alt="David Hoese"/><br /><sub><b>David Hoese</b></sub></a><br /><a href="#question-djhoese" title="Answering Questions">💬</a></td>
-      <td align="center" valign="top" width="14.28%"><a href="https://dennissergeev.github.io/"><img src="https://avatars.githubusercontent.com/u/12111288?v=4?s=100" width="100px;" alt="Denis Sergeev"/><br /><sub><b>Denis Sergeev</b></sub></a><br /><a href="https://github.com/bjlittle/geovista/issues?q=author%3Adennissergeev" title="Bug reports">🐛</a> <a href="#promotion-dennissergeev" title="Promotion">📣</a></td>
+      <td align="center" valign="top" width="14.28%"><a href="https://dennissergeev.github.io/"><img src="https://avatars.githubusercontent.com/u/12111288?v=4?s=100" width="100px;" alt="Denis Sergeev"/><br /><sub><b>Denis Sergeev</b></sub></a><br /><a href="https://github.com/bjlittle/geovista/issues?q=author%3Adennissergeev" title="Bug reports">🐛</a> <a href="#promotion-dennissergeev" title="Promotion">📣</a> <a href="#ideas-dennissergeev" title="Ideas, Planning, & Feedback">🤔</a></td>
       <td align="center" valign="top" width="14.28%"><a href="https://github.com/ESadek-MO"><img src="https://avatars.githubusercontent.com/u/110238618?v=4?s=100" width="100px;" alt="Elias"/><br /><sub><b>Elias</b></sub></a><br /><a href="https://github.com/bjlittle/geovista/commits?author=ESadek-MO" title="Code">💻</a></td>
     </tr>
     <tr>