Merge tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu into staging

UI-related fixes and cleanups

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# gpg: Signature made Wed 22 Apr 2026 06:33:19 EDT
# gpg:                using RSA key 87A9BD933F87C606D276F62DDAE8E10975969CE5
# gpg: Good signature from "Marc-André Lureau <marcandre.lureau@redhat.com>" [full]
# gpg:                 aka "Marc-André Lureau <marcandre.lureau@gmail.com>" [full]
# Primary key fingerprint: 87A9 BD93 3F87 C606 D276  F62D DAE8 E109 7596 9CE5

* tag 'ui-pull-request' of https://gitlab.com/marcandre.lureau/qemu: (40 commits)
  tests: rename the dbus-daemon helper script
  ui/vnc: explicitly link with png
  ui/vnc: remove left-over dead code
  ui/vnc: make vnc_disconnect_finish() private
  ui/vnc: fix vnc_display_init() leak on failure
  ui/keymaps: introduce kbd_layout_free()
  ui/vnc: VncDisplay.id is not const
  ui/vnc: simplify vnc_init_func error handling
  ui/vnc: assert preconditions instead of silently returning
  system: make qemu_del_vm_change_state_handler accept NULL
  util: move datadir.c from system/
  ui/vgafont: add SPDX license header
  ui: avoid duplicating vgafont16 in each translation unit
  ui/console-vc: unify the write path
  ui/console-vc: move vc_put_lf() to VT100 layer as vt100_put_lf()
  ui/console-vc: refactor text_console_resize() into vt100_set_image()
  ui/console-vc: console_scroll() -> vt100_scroll()
  ui/console-vc: move cursor blinking logic into VT100 layer
  ui/console-vc: console_refresh() -> vt100_refresh()
  ui/console-vc: decouple VT100 display updates via function pointer
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>