Change Colorscheme Toggle Button to be floating (#466)

Luiz F. A. de Prá

29.37.2020 acef79480ddd506a4246540c69d4ad82610698ca

 assets/scss/coder-dark.scss

@@ -3,3 +3,4 @@
@import "content_dark";
@import "navigation_dark";
@import "footer_dark";
@import "float_dark";