[WIP] Qt: Add config window controls (#655)

* Qt: Add config window controls

* Fix Windows build

* Fix audio slider

* Qt configs: Make thread-safe, properly update audio enable & renderdoc settings

* Qt configs: Add `connectCheckbox` function

* Qt configs: Add `connectCheckbox` function

* Rename spuLayout

* Add Discord RPC reloading

* Allow configuring the app icon

* Qt: Serialize icon & theme, properly set them

* Add rnap and rcow icons

* Qt: Fix forceShadergen config

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Co-authored-by: wheremyfoodat <44909372+wheremyfoodat@users.noreply.github.com>

include/emulator.hpp

@@ -118,6 +118,9 @@ class Emulator {
 	void setOutputSize(u32 width, u32 height) { gpu.setOutputSize(width, height); }
 	void deinitGraphicsContext() { gpu.deinitGraphicsContext(); }
 
+	// Reloads some settings that require special handling, such as audio enable
+	void reloadSettings();
+
 	EmulatorConfig& getConfig() { return config; }
 	Cheats& getCheats() { return cheats; }
 	ServiceManager& getServiceManager() { return kernel.getServiceManager(); }