Fix mobile spacing issues with links

lib/music_library_web/components/core_components.ex

@@ -561,7 +561,7 @@ defmodule MusicLibraryWeb.CoreComponents do
 
   def back(assigns) do
     ~H"""
-    <div class="mt-16">
+    <div class="mt-4 md:mt-16 mb-4">
       <.link
         navigate={@navigate}
         class="text-sm font-semibold leading-6 text-zinc-900 hover:text-zinc-700"

lib/music_library_web/components/pagination.ex

@@ -12,7 +12,7 @@ defmodule MusicLibraryWeb.Pagination do
     ~H"""
     <div
       id="pagination"
-      class="flex items-center justify-between border-t border-gray-200 bg-white px-4 py-3 sm:px-6"
+      class="flex items-center justify-between border-t border-gray-200 bg-white px-4 py-3 sm:px-6 mb-4"
     >
       <%!-- Only on smallest viewport --%>
       <div class={[