Merge pull request #19753 from mnjul/bug_962902_duplicate_blob_url_in_sy...

...stem_app

Bug 962902 - Duplicate blob url wastes 125k in the system app
Conflicts:
	apps/system/index.html
	apps/system/js/bootstrap.js
	apps/system/js/lockscreen.js
	apps/system/js/system.js