ncp-web/wizard wishlist

Wishlist of features / enhancements for ncp-web. This list complements #380, but these mostly don't need to wait until the backend changes.

ncp-web

• a special view for nc-restore where you can see a list of available backups and click on one of them
• a directory picker widget so you can select a folder by browsing the server, instead of typing the path. This would be useful for several apps, like nc-datadir, nc-database...
• a way to upload files, such as a backup or a config file
• ability to show/hide the sidebar with a swipe (mobile phone)
• sanitize input in javascript. Probably after #380
• replace translation engine for something more automatic (weblate or similar)
• search based on (translated) text, not only ncp-app id
• associate urls with sections, and be able to use history ( eg: nextcloudpi.local:4443/#nc-datadir)
• a search box
• file exists indication when there is a path in the text box
• a python test in the test folder
• "typed fields", so for instance passwords are hidden while typing, checkboxes, file paths...

wizard

• the wizard needs a couple new things integrated: enable automatic NC updates and NCP updates, maybe activate UFW
• rewarn before formatting that the contents of the drive will be lost
• check for updates/update at beginning of wizard (like ncp-web)
• disable fail2ban,dnsmasq if selecting "no external access"?
• more DDNS clients
• prefill text input boxes with past input
• detect open ports, and only ask to use upnp if needed
• detect nat loopback and only activate dnsmasq if necessary
• new proposed design in https://github.com/nextcloud/nextcloudpi/issues/272
• translations