Remove universal search hooks

- Global shortcuts don't work
- Focus input on open can be achieved just with 'autofocus' attribute
- Maintaining focus when input is active can be achieved just by adding
  an ID to the input

lib/music_library_web/components/layouts/app.html.heex

@@ -118,7 +118,7 @@
   </div>
 </main>
 
-<div phx-hook="Search" id="search-global-hook">
+<div>
   {live_render(@socket, MusicLibraryWeb.UniversalSearchLive.Index,
     id: "universal-search",
     session: %{}

lib/music_library_web/live/universal_search_live/index.html.heex

@@ -4,8 +4,6 @@
     class="fixed inset-0 z-50 flex items-start justify-center pt-16 px-4 pb-6 sm:pt-24"
     phx-window-keydown="key_navigation"
     phx-key="keydown"
-    phx-hook="Search"
-    id="search-modal"
   >
     <!-- Modal backdrop -->
     <div
@@ -26,11 +24,11 @@
             />
             <.input
               name="query"
+              id="universal-search-input"
               placeholder="Search records and artists..."
               value={@search_query}
               phx-debounce="300"
-              phx-hook="SearchInput"
-              id="universal-search-input"
+              autofocus
             />
             <button
               :if={@search_query != ""}