refactor: update global styles

Author: LuggaPugga

src/app/global.css

@@ -1,15 +1,7 @@
 @import "tailwindcss";
-@import "fumadocs-ui/css/neutral.css";
+@import "fumadocs-ui/css/dusk.css";
 @import "fumadocs-ui/css/preset.css";
 
-:root {
-  --color-fd-primary: oklch(0.63 0.17 149);
-  --tweaks-color: oklch(0.63 0.17 149);
-  --worlds-color: oklch(0.6 0.18 240);
-}
-
-.dark {
-  --color-fd-primary: oklch(0.63 0.17 149);
-  --tweaks-color: oklch(0.63 0.17 149);
-  --worlds-color: oklch(0.6 0.18 240);
-}
+* {
+  border-radius: 0 !important;
+}