Fixes the modal backdrop
Moved the check for updates on start up to be done after the app is ready
Show more info about failure in console.
Merge pull request #5223 from zaggino/nodeErrorHandling

Show more info about failure in console.
Moved the app ready block to the previous location
Removed unused dependency
Merge pull request #5085 from TomMalbran/tom/issue-5062

Fix #5062: Update notification is no longer modal