Revert "Use <audio> tag for audio only"

This reverts commit e6bc5bb35d.

src/invidious/views/components/player.ecr

@@ -1,4 +1,4 @@
-<<% if params[:listen]%>audio<% else %>video<% end %> style="width:100%" playsinline poster="<%= thumbnail %>" title="<%= HTML.escape(video.title) %>" 
+<video style="width:100%" playsinline poster="<%= thumbnail %>" title="<%= HTML.escape(video.title) %>" 
     id="player" class="video-js"
     onmouseenter='this["data-title"]=this["title"];this["title"]=""'
     onmouseleave='this["title"]=this["data-title"];this["data-title"]=""'
@@ -36,7 +36,7 @@
             label="<%= caption.name.simpleText %>">
         <% end %>
     <% end %>
-</<% if params[:listen]%>audio<% else %>video<% end %>>
+</video>
 
 <script>
 var options = {