chore(deps): bump ace-builds from 1.4.6 to 1.4.7 in /frontend (#894)

Bumps [ace-builds](https://github.com/ajaxorg/ace-builds) from 1.4.6 to 1.4.7.
- [Release notes](https://github.com/ajaxorg/ace-builds/releases)
- [Changelog](https://github.com/ajaxorg/ace-builds/blob/master/ChangeLog.txt)
- [Commits](https://github.com/ajaxorg/ace-builds/compare/v1.4.6...v1.4.7)

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

frontend/package.json

@@ -9,7 +9,7 @@
     "lint": "vue-cli-service lint --fix"
   },
   "dependencies": {
-    "ace-builds": "^1.4.6",
+    "ace-builds": "^1.4.7",
     "clipboard": "^2.0.4",
     "js-base64": "^2.5.1",
     "lodash.clonedeep": "^4.5.0",