[video_core] Fixes flickering and weird textures at native 1x resolution (#3346)

The issue occurs because shaders generated without RescalingPass are too simple, triggering driver optimization bugs on some GPUs.
Fixes rendering issues in Luigi's Mansion 3 and possibly other games as well.

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/3346
Reviewed-by: DraVee <dravee@eden-emu.dev>
Co-authored-by: MaranBr <maranbr@outlook.com>
Co-committed-by: MaranBr <maranbr@outlook.com>

src/common/settings.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
@@ -347,7 +347,7 @@ void TranslateResolutionInfo(ResolutionSetup setup, ResolutionScalingInfo& info)
     }
     info.up_factor = static_cast<f32>(info.up_scale) / (1U << info.down_shift);
     info.down_factor = static_cast<f32>(1U << info.down_shift) / info.up_scale;
-    info.active = info.up_scale != 1 || info.down_shift != 0;
+    info.active = true;
 }
 
 void UpdateRescalingInfo() {

src/shader_recompiler/frontend/maxwell/translate_program.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project