[frontend] Firmware setup & requirement (#222)

Currently Android only, will need to be added to desktop.

Android incorrectly records firmware as 19.0.1 if on a higher version...

TODO:
- [x] desktop
- [x] fix android

Signed-off-by: crueter <swurl@swurl.xyz>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/222
Co-authored-by: crueter <swurl@swurl.xyz>
Co-committed-by: crueter <swurl@swurl.xyz>

src/yuzu/main.h

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: 2014 Citra Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
@@ -414,6 +417,7 @@ private slots:
     void OnCreateHomeMenuShortcut(GameListShortcutTarget target);
     void OnCaptureScreenshot();
     void OnCheckFirmwareDecryption();
+    void OnCheckFirmware();
     void OnLanguageChanged(const QString& locale);
     void OnMouseActivity();
     bool OnShutdownBegin();