Enable HiDPI on Windows (sqlitebrowser#2469)

* Enable HiDPI on Windows

* Fix build with MSVC2019 (use of overloaded operator'=' is ambiguous)

Co-authored-by: Nikolay Zlatev <nik@astrapaging.com>

Update code according @mgrojo's review

Update Arabic translation (sqlitebrowser#2406)

sqlitebrowser#2405
# Conflicts:
#	src/translations/sqlb_ar_SA.ts

DB Browser for SQLite 3.12.0

Update version number for 3.12.0

Updating version number for 3.12.0-rc1

We're using 3.11.300 for the 3.12.0-rc1, in order to keep
numerically lower than 3.12.0, which will be used for the
actual release.

Only include the build date for nightly builds.

Our alpha and beta releases use patch numbers greater than 99, so
were being caught by the version string check.

Update version number to 3.11.2

The rebuilt macOS installer (v2) was generated from this tag.

Update version number to 3.11.1