Syncthing full changelog

Bugfixes:
#7075: Invalid names are allowed and "auto accepted" in folder root path on Windows
#7122: Sometimes indexes for some folders aren't sent after starting Syncthing
#7137: [Untrusted] Remove Unexpected Items leaves things behind
#7138: Wrong theme on selection
#7144: Quic spamming address resolving
#7152: Restart of Syncthing with receive-encrypted folder creates sync-conflicts, adds as unexpected items
#7153: Deleted locally changed items still shown as locally changed
Enhancements:
#4824: Allow specifying remote expected web UI port which would generate a href somewhere
#7117: Ignore fsync errors when saving ignore files

Bugfixes:
6827: syncthing 1.6.1 -> 1.7.0 fails on "failed validating data"

This release performs a database migration to optimize for clusters with
many devices.
Bugfixes:
#6552: panic: Stop called more than once on ... created by nat.Service
#6564: Closing an already removed connection causes GUI error message
#6646: Misleading error message when to be deleted dir contains receive-only changes
#6653: panic: nil pointer dereference in leveldb.(*DB).isClosed()
#6654: panic: runtime error: index out of range in processNeeded()
#6655: panic: nil pointer dereference in checkUpgrade()
#6679: QUIC listener is not added when default TCP port is unavailable
#6697: Malformed listen address causes hang on startup
#6706: Changing a folder in web UI removes introduced-by info
Enhancements:
#1830: "Folder path missing" when folder path is a junction
#4703: Suggest setting up auth on initial startup
#5910: Add Badger database backend for testing and consideration
#6372: Reduce database size by optimizing version list storage

Bugfixes:
3808: gui: Number of days must be number flashes red then disappears
5809: stdiscosrv failed to load keypair without proper error message

Bugfixes:
Panic: nil pointer dereference in usage reporting

Bugfixes:
#6499: panic: nil pointer dereference in usage reporting

Bugfixes:
"general SOCKS server failure" since syncthing 1.3.3
Connection errors not shown in GUI
Loop in database migration "folder db index missing" after upgrade to v1.4.0

Bugfixes:
#4570: Negative percentage and data to sync
#5867: Progress bar not visible
#6044: Clicking "Save" in options says "You have unsaved changes" when changing automatic upgrade setting

Bugfixes:
Windows: Syncthing log file filling up primary drive.
Race condition in restarting folder

Bugfixes:
Build information missing in discovery and relay server binaries
Usage-reported transfer stats are meaningless
Changed file in receive-only folder cannot be ignored
Shows authentication warning when listening on UNIX socket
Hostnames resolving to localhost are not considered 'local' in remote access warning
Enhancements:
White tab in black Interface ?
Stalled scans need better UI representation
Other issues:
STUN server stun.voxgratia.org should be removed