Qt: Install crash handler on startup

src/duckstation-qt/main.cpp

@@ -1,4 +1,5 @@
 #include "common/log.h"
+#include "common/crash_handler.h"
 #include "mainwindow.h"
 #include "qthostinterface.h"
 #include "qtutils.h"
@@ -27,6 +28,8 @@ static bool ParseCommandLineParameters(QApplication& app, QtHostInterface* host_
 
 int main(int argc, char* argv[])
 {
+  CrashHandler::Install();
+
   // Register any standard types we need elsewhere
   qRegisterMetaType<std::optional<bool>>();
   qRegisterMetaType<std::function<void()>>();

src/frontend-common/common_host_interface.cpp

@@ -5,6 +5,7 @@
 #include "common/file_system.h"
 #include "common/log.h"
 #include "common/string_util.h"
+#include "common/crash_handler.h"
 #include "controller_interface.h"
 #include "core/cdrom.h"
 #include "core/cheats.h"
@@ -64,6 +65,9 @@ bool CommonHostInterface::Initialize()
   if (!FileSystem::SetWorkingDirectory(m_user_directory.c_str()))
     Log_ErrorPrintf("Failed to set working directory to '%s'", m_user_directory.c_str());
 
+  // Set crash handler to dump to user directory, because of permissions.
+  CrashHandler::SetWriteDirectory(m_user_directory);
+
   LoadSettings();
   UpdateLogSettings(g_settings.log_level, g_settings.log_filter.empty() ? nullptr : g_settings.log_filter.c_str(),
                     g_settings.log_to_console, g_settings.log_to_debug, g_settings.log_to_window,