Move viewers to their own namespace; purge viewers when there are too many loaded, to avoid bogging down the browser.
Use labels in the input-groups, so that clicking the property name focuses on the value.
Remove tiny console for now.
- Use safer execution method when calling Google drive - in case of server error, a retry will be done after 100ms.
- Add an autocomplete box for suppliers
- Change classes a little bit for prettier UI.