fix websocket subscriptions with token instances

apps/block_scout_web/lib/block_scout_web/templates/transaction/_tile.html.eex

@@ -38,11 +38,11 @@
         <div class="d-flex flex-column mt-2">
           <% [first_token_transfer | remaining_token_transfers] = @transaction.token_transfers %>
 
-          <%= render "_token_transfer.html", address: assigns[:current_address], token_transfer: first_token_transfer, conn: @conn %>
+          <%= render "_token_transfer.html", address: assigns[:current_address], token_transfer: first_token_transfer %>
 
           <div class="collapse token-transfer-toggle" id="transaction-<%= @transaction.hash %>">
             <%= for token_transfer <- remaining_token_transfers do %>
-              <%= render "_token_transfer.html", address: assigns[:current_address], token_transfer: token_transfer, conn: @conn %>
+              <%= render "_token_transfer.html", address: assigns[:current_address], token_transfer: token_transfer %>
             <% end %>
           </div>
         </div>

apps/block_scout_web/lib/block_scout_web/templates/transaction/_token_transfer.html.eex

@@ -22,7 +22,7 @@
   <span class="col-xs-12 col-lg-4 ml-3 ml-sm-0 text-truncate">
     <%= case token_transfer_amount(@token_transfer) do %>
       <% {:ok, :erc721_instance} -> %>
-        <%= "TokenID ["%><%= link(@token_transfer.token_id, to: token_instance_path(@conn, :show,  @token_transfer.token.contract_address_hash, to_string(@token_transfer.token_id))) %><%= "] " %>
+        <%= "TokenID ["%><%= link(@token_transfer.token_id, to: token_instance_path(BlockScoutWeb.Endpoint, :show,  @token_transfer.token.contract_address_hash, to_string(@token_transfer.token_id))) %><%= "] " %>
       <% {:ok, value} -> %>
         <%= "#{value} " %>
     <% end %>