old_contents: // We need to import the CSS so that webpack will load it.
  // The MiniCssExtractPlugin is used to separate it out into
  // its own CSS file.
  import css from "../css/app.css";
  
  // webpack automatically bundles all modules in your
  // entry points. Those entry points can be configured
  // in "webpack.config.js".
  //
  // Import dependencies
  //
  <%= if html do %>import "phoenix_html"<% end %>
  
  // Import local files
  //
  // Local files can be imported directly using relative
  // paths "./socket" or full ones "web/static/js/socket".
  
  // import socket from "./socket"
  
new_contents: // We need to import the CSS so that webpack will load it.
  // The MiniCssExtractPlugin is used to separate it out into
  // its own CSS file.
  import css from "../css/app.css"
  
  // webpack automatically bundles all modules in your
  // entry points. Those entry points can be configured
  // in "webpack.config.js".
  //
  // Import dependencies
  //
  <%= if html do %>import "phoenix_html"<% end %>
  
  // Import local files
  //
  // Local files can be imported directly using relative
  // paths "./socket" or full ones "web/static/js/socket".
  
  // import socket from "./socket"
  
subject: Delete semicolon for consistency in app.js (#2877)