gsettings-desktop-schemas: Update to 3.38.0

Based on work by Dan Cîrnaț in wip.

Major changes in 3.38.0
=======================
- Translation updates

Major changes in 3.37.92
========================
- Build gir even when cross-compiling
- Translation updates

Major changes in 3.37.2
=======================
- USB protection is enabled by default
- Add tap-button-map and tap-drag-lock settings
- Treat x-content/ostree-repository as software
- Fix introspection on Visual Studio
- Fix quotes in user strings to use HIG typography
- Translation updates

Major changes in 3.37.1
=======================
- Add 'avatar-directories' setting
- Translation updates

Major changes in 3.36.0
=======================
- Translation updates

Major changes in 3.35.91
========================
- Add USB protection key
- Translation updates

Major changes in 3.34.0
=======================
- Translation updates

Major changes in 3.33.92
========================
- Translation updates

Major changes in 3.33.90
========================
- Add 'middle-click-emulation' setting
- Translation updates

Major changes in 3.33.1
=======================
- Add 'enable-hot-corners' setting
- Translation updates

Major changes in 3.33.0
=======================
- Add mount-removable-storage-devices-as-read-only lockdown option
- Add setting for overlay scrolling
- Add locate-pointer setting
- Add settings to store numlock state
- Translation updates

Major changes in 3.32.0
=======================
- Translation updates

Major changes in 3.31.92
========================
- Drop legacy build systems
- Translation updates

Major changes in 3.31.91
========================
- Translation updates

Major changes in 3.31.90
========================
- Updated default monospace font
- More meson build fixes
- Translation updates

Major changes in 3.31.0.2
=========================
- Fixed generation of enums XML on meson builds
- Convert post-install script to python
- Translation updates

Major changes in 3.31.0.1
=========================
- Brown paper bag release, included several fixes to meson build

Major changes in 3.31.0
=======================
- Add settings to inhibit microphone/camera
- Change tablets'/touchscreens' "display" setting to "output" one
  with different semantics.
- Added meson build support
- Changed default clock settings
- Added XF86Keyboard keybinding to cycle the keyboard layout

Major changes in 3.28.1
=======================
- Set default background image for screen lock to an existing one
- Translation updates

Major changes in 3.28.0
=======================
- Translation updates

Major changes in 3.27.92
========================
- Translation updates

Major changes in 3.27.90
========================
- Add setting about whether to allow volume above 100%
- Change default click method for touchpads, from Windows-style
  soft-button areas, to Mac-style two-finger right-click. This
  does not change the settings for trackpoints or touchpads that
  don't support multi-touch
- Add tertiary button action for Wacom styli

Major changes in 3.27.1
=======================
- Add a gsettings key to show/hide weekday
- gschema: Fix gettext-domain
- Translation updates

Major changes in 3.24.1
=======================
- Update GConf convert scripts to cater for peripherals
- Win32 build fixes
- Translation updates

(nia)