move all svg icons to 'icons' folder

app/views/submissions/show.html.erb

@@ -54,9 +54,7 @@
                     <% attachment = ActiveStorage::Attachment.find_by(uuid:) %>
                     <li class="flex items-center justify-between py-4 pl-4 pr-5 text-sm leading-6">
                       <div class="flex w-0 flex-1 items-center">
-                        <svg class="h-5 w-5 flex-shrink-0 text-gray-300" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
-                          <path fill-rule="evenodd" d="M15.621 4.379a3 3 0 00-4.242 0l-7 7a3 3 0 004.241 4.243h.001l.497-.5a.75.75 0 011.064 1.057l-.498.501-.002.002a4.5 4.5 0 01-6.364-6.364l7-7a4.5 4.5 0 016.368 6.36l-3.455 3.553A2.625 2.625 0 119.52 9.52l3.45-3.451a.75.75 0 111.061 1.06l-3.45 3.451a1.125 1.125 0 001.587 1.595l3.454-3.553a3 3 0 000-4.242z" clip-rule="evenodd" />
-                        </svg>
+                        <%= svg_icon('paperclip', class: 'h-5 w-5 flex-shrink-0 text-gray-300') %>
                         <div class="ml-4 flex min-w-0 flex-1 gap-2">
                           <span class="truncate font-medium">
                             <%= attachment.filename %>