mate-session-manager 1.23.0 release

Changes since the last release: v1.22.1...v1.23.0

mate-session-manager 1.23.0

• tx: sync with transifex
• Remove trailing whitespaces
• migrate from intltool to gettext
• Change url project's website
• [ci] Add cppcheck html report
• test-inhibit.c: migrate to gdbus
• Don't add apps repeatedly
• Add Show hidden checkbox and gsettings flag.
• Hide NoDisplay Apps in Startup Applications
• Simplify the installation process of the icons
• main: Potential leak of memory pointed to by 'new_argv'
• [Security] Use 'g_strlcpy' instead of 'strcpy'
• [ci] Enable Clang Static Analyzer
• Add missing CPPFLAGS for mate_session_check_accelerated helpers
• Add hardware-compatibility file
• Fix unable to retrieve org.gnome.SessionManager.Renderer property
• mate-session-check-accelerated-gles-helper
• Add mate_session_check_accelerated helpers
• add installation instructions and update URL
• Add ELOGIND support
• Guard against missing systemd