I wasn't aware that even with a size of zero, it's still not safe to pass a nullptr to `std::memcpy`. When `CachedInterpreterEmitter::PoisonCallback` is written, UB is happening.

Interpreter: Fix subfic carry calculation

This was accidentally using the instruction's output instead of the
instruction's input when the input and output registers were the same.

Add support for libfmt-11

vulkan: Add line number to vulkan error logger

MainWindow: Prevent Confirm On Stop dialog from being hidden by the Render window

RVZ: Fix undefined behaviour when copying 0 bytes to a null pointer

This is a minor improvement to add line numbers to the LOG_VULKAN_ERROR
define. Basically error logs for Vulkan will now look like:

```
// This
25:03:347 VideoBackends/Vulkan/VulkanLoader.cpp:247 E[Video]: (WaitForCommandBufferCompletion:278) vkWaitForFences failed:  (2: VK_TIMEOUT)

// Instead of
15:45:154 VideoBackends/Vulkan/VulkanLoader.cpp:247 E[Video]: (WaitForCommandBufferCompletion) vkWaitForFences failed:  (2: VK_TIMEOUT)
```

Set the Render Window as the parent of the Confirm On Stop confirmation
dialog when Keep Window On Top is enabled, ensuring it will always be
visible.

Previously, when Confirm On Stop and Keep Window On Top were both
enabled the Confirm On Stop dialog could be hidden by the render window
in the following situations:
* Clicking Stop in the Main Window
* Clicking the Main Window's close button
* Pressing the Stop hotkey while in FullScreen mode

This was particularly troublesome because the confirm dialog is modal,
preventing the user from moving the render window out of the way if it
was obscuring the dialog.

Fixes https://bugs.dolphin-emu.org/issues/13247.

HotkeyScheduler: Handle Wii Remote connections independently