Update CodeMirror dep to v5.42.2

Affects Code and Markdown section types

gui/public/codemirror/mode/cypher/cypher.js

@@ -1,5 +1,5 @@
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
+// Distributed under an MIT license: https://codemirror.net/LICENSE
 
 // By the Neo4j Team and contributors.
 // https://github.com/neo4j-contrib/CodeMirror

gui/public/codemirror/mode/cypher/index.html

@@ -7,6 +7,7 @@
 <link rel="stylesheet" href="../../lib/codemirror.css" />
 <link rel="stylesheet" href="../../theme/neo.css" />
 <script src="../../lib/codemirror.js"></script>
+<script src="../../addon/edit/matchbrackets.js"></script>
 <script src="cypher.js"></script>
 <style>
 .CodeMirror {
@@ -15,7 +16,7 @@
 }
         </style>
 <div id=nav>
-  <a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
+  <a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
 
   <ul>
     <li><a href="../../index.html">Home</a>
@@ -53,7 +54,7 @@ window.onload = function() {
     indentWithTabs: true,
     smartIndent: true,
     lineNumbers: true,
-    matchBrackets : true,
+    matchBrackets: true,
     autofocus: true,
     theme: 'neo'
   });

gui/public/codemirror/mode/cypher/test.js

@@ -1,5 +1,5 @@
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
+// Distributed under an MIT license: https://codemirror.net/LICENSE
 
 (function() {
   var mode = CodeMirror.getMode({tabSize: 4, indentUnit: 2}, "cypher");