Merge upstream/main (v0.2.32) into openxr-work

Brings in the keyboard/mouse rebinding overhaul (#162), the Kamek
skip-return hook fixes (#182, #218), the exit button and controller LED
fix (#221), the autohide-cursor and mute hotkey fix (#211), the Linux
--sysroot plumbing (#224) and the switch to the theofficialgman
dawn-build fork (#215).

Conflicts resolved to keep the VR integration intact:

- settings_overlay.cpp/.h: kept both new declarations. The controller
  rebinding UI takes upstream's click-to-rebind widgets wholesale - our
  only edit there was wrapping the combo width in Scaled(), and
  upstream's bindingWidth is already font-relative, so the headset
  panel still scales. Kept our DrawResolutionMenu() extraction (the VR
  panel reuses it) while adopting upstream's DrawExitPrompt() and its
  new DrawTopBar() prologue; kept our Diagnostics menu alongside
  upstream's exit-button width math. HandleEvents merges both keyboard
  paths, with the VR recenter hotkey now guarded by !g_rebind.active so
  it cannot fire while a binding is being captured.

- AuroraDawnProvider.cmake: dropped our now-dead Android hash block.
  Upstream restructured the pins into an if/elseif chain that already
  covers android/aarch64, with the digest for the new dawn-build fork;
  our leftover block was unreachable and carried the old encounter
  digest.

- Version plumbing (Build-Installer.ps1, Setup.Windows Program.cs and
  csproj): kept this fork's own line, which is 0.2.39 and centralised in
  Launcher/Directory.Build.props, rather than regressing to upstream's
  hardcoded 0.2.32.

Verified: translator 654/654; runtime ctest 14/14 including every VR
test; WiiCompiled and RetroRewind link; aurora gx_fifo_tests 262/263,
the one failure being the TevRegisterLiveness case already documented as
pre-existing on this branch.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

runtime/include/aurora_events.h

@@ -59,6 +59,7 @@ inline void Flush(bool force = false) {
 // still active.  A window close is an intentional successful exit, so end the
 // process directly and do not run the crash/atexit paths.
 [[noreturn]] inline void ExitForAuroraWindowClose() noexcept {
+    settings_overlay::ReleaseControllers();
     WindowPlacementPersistence::Flush(true);
 #if defined(_WIN32)
     ::ExitProcess(0);