add some codemirror modes to syntax-highlight fenced code blocks

src/client/js/components/PageEditor/CodeMirrorEditor.jsx

@@ -54,9 +54,36 @@ require('codemirror/addon/fold/foldgutter.css');
 require('codemirror/addon/fold/markdown-fold');
 require('codemirror/addon/fold/brace-fold');
 require('codemirror/addon/display/placeholder');
-require('codemirror/mode/gfm/gfm');
 require('../../util/codemirror/autorefresh.ext');
 require('../../util/codemirror/gfm-growi.mode');
+// import modes to highlight
+require('codemirror/mode/clike/clike');
+require('codemirror/mode/css/css');
+require('codemirror/mode/django/django');
+require('codemirror/mode/erlang/erlang');
+require('codemirror/mode/gfm/gfm');
+require('codemirror/mode/go/go');
+require('codemirror/mode/javascript/javascript');
+require('codemirror/mode/jsx/jsx');
+require('codemirror/mode/mathematica/mathematica');
+require('codemirror/mode/nginx/nginx');
+require('codemirror/mode/perl/perl');
+require('codemirror/mode/php/php');
+require('codemirror/mode/python/python');
+require('codemirror/mode/r/r');
+require('codemirror/mode/ruby/ruby');
+require('codemirror/mode/rust/rust');
+require('codemirror/mode/sass/sass');
+require('codemirror/mode/shell/shell');
+require('codemirror/mode/sql/sql');
+require('codemirror/mode/stex/stex');
+require('codemirror/mode/stylus/stylus');
+require('codemirror/mode/swift/swift');
+require('codemirror/mode/toml/toml');
+require('codemirror/mode/vb/vb');
+require('codemirror/mode/vue/vue');
+require('codemirror/mode/xml/xml');
+require('codemirror/mode/yaml/yaml');
 
 
 const MARKDOWN_TABLE_ACTIVATED_CLASS = 'markdown-table-activated';