v0.5.1

Hey everyone! This is just a minor update that addresses an issue with the post/comment submission contrast. To see the full release notes of v0.5.0, check out the following post: https://github.com/thunder-app/thunder/releases/tag/0.5.0.

Fixes

• Fix issue with colour contrast for create post/comment button by @hjiangsu in #1536

Full Changelog: 0.5.0...0.5.1