use full for 100% instead of 100vh (#3256)

Author: GiantRobots

src/lib/holocene/main-content-container.svelte

@@ -1,7 +1,4 @@
-<div
-  id="content-wrapper"
-  class="relative h-screen w-max flex-auto overflow-auto"
->
+<div id="content-wrapper" class="relative h-full w-max flex-auto overflow-auto">
   <slot />
   <main id="content" class="pb-16 md:pb-0">
     <slot name="main" />