ui: fix padding

packages/ui-default/misc/structure.styl

@@ -30,7 +30,7 @@
   -webkit-box-shadow: inset 0 0 6px rgba(0,0,0,0.25);
 
 .main
-  padding: rem(20px 0)
+  padding: rem(55px 0)
   flex: 1
 
   +above(rupture.desktop-cutoff)

packages/ui-default/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.12.20",
+  "version": "4.12.21",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",