Bump codemirror from 5.44.0 to 5.48.2 in /assets

Bumps [codemirror](https://github.com/codemirror/CodeMirror) from 5.44.0 to 5.48.2.
- [Release notes](https://github.com/codemirror/CodeMirror/releases)
- [Changelog](https://github.com/codemirror/CodeMirror/blob/master/CHANGELOG.md)
- [Commits](codemirror/codemirror5@5.44.0...5.48.2)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

assets/yarn.lock

@@ -1165,9 +1165,9 @@ code-point-at@^1.0.0:
   integrity sha1-DQcLTQQ6W+ozovGkDi7bPZpMz3c=
 
 codemirror@^5.35.0:
-  version "5.44.0"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.44.0.tgz#80dc2a231eeb7aab25ec2405cdca37e693ccf9cc"
-  integrity sha512-3l42syTNakCdCQuYeZJXTyxina6Y9i4V0ighSJXNCQtRbaCN76smKKLu1ZHPHQon3rnzC7l4i/0r4gp809K1wg==
+  version "5.48.2"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.48.2.tgz#a9dd3d426dea4cd59efd59cd98e20a9152a30922"
+  integrity sha512-i9VsmC8AfA5ji6EDIZ+aoSe4vt9FcwPLdHB1k1ItFbVyuOFRrcfvnoKqwZlC7EVA2UmTRiNEypE4Uo7YvzVY8Q==
 
 coffee-script@~1.12.7:
   version "1.12.7"