v1.10.0

This release adds the config option `announceLANAddresses` to enable
(the default) or disable announcing private (RFC1918) LAN IP addresses
to global discovery.

Bugfixes:

- #6880: fatal error: concurrent map iteration and map write
- #6917: Reconsider db check on upgrade
- #6940: TypeError: Object doesn't support property or method 'startsWith' in IE 11 / Windows 7
- #6943: Missing strings for translation
- #6961: Accounting issue with receive-only deleted files causing spurious 95% completion for remote devices
- #6968: Very slow scans on Windows in 1.9.0
- #6972: Deleting a folder containing a symlink results in a permanently out of sync on windows
- #6973: given name "~syncthing~xxx.tmp" differs from name in filesystem "~syncthing~XXX.tmp"

Enhancements:

- #6734: Consider moving configuration to a proto contract
- #6928: Announce LAN addresses to global discovery
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