feat: switch logo according to light or dark mode

README.md

@@ -1,7 +1,11 @@
 [![license](https://img.shields.io/github/license/mainsail-crew/crowsnest?style=flat-square&color=green)](https://github.com/mainsail-crew/crowsnest/blob/master/LICENSE) [![language](https://img.shields.io/github/languages/top/mainsail-crew/crowsnest?style=flat-square&logo=gnubash&logoColor=white)](https://github.com/mainsail-crew/crowsnest/search?l=shell) [![commit-activity](https://img.shields.io/github/commit-activity/m/mainsail-crew/crowsnest?style=flat-square)](https://github.com/mainsail-crew/crowsnest/commits) [![issue-search](https://img.shields.io/github/issues/mainsail-crew/crowsnest?style=flat-square)](https://github.com/mainsail-crew/crowsnest/issues) [![discord](https://img.shields.io/discord/758059413700345988?color=%235865F2&label=discord&logo=discord&logoColor=white&style=flat-square)](https://discord.gg/mainsail)
 
 <p align="center">
-<img src=".github/crowsnest-logo.png" style="width:30%">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset=".github/crowsnest-logo-darkmode.png">
+    <source media="(prefers-color-scheme: light)" srcset=".github/crowsnest-logo-lightmode.png">
+    <img alt="Crowsnest Logo" src=".github/crowsnest-logo-lightmode.png" style="width: 30%">
+  </picture>
 </p>
 
 # crowsnest