[core, qt] remove non-ascii from src code (#2779)

Done with `find src -type f -iname '*.md' -print0 | xargs -0 pcregrep --color='auto' -nr '[^\x00-\x7F]'`
Signed-off-by: lizzie <lizzie@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2779
Reviewed-by: crueter <crueter@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/core/arm/nce/instructions.h

@@ -1,4 +1,7 @@
-// SPDX-FileCopyrightText: Copyright © 2020 Skyline Team and Contributors
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2020 Skyline Team and Contributors
 // SPDX-License-Identifier: MPL-2.0
 
 #include "common/bit_field.h"

src/core/hle/service/nifm/nifm.cpp

@@ -316,7 +316,7 @@ private:
             g_last_scan_results = scan_results;
         }
 
-        // ❸ choose result code
+        // choose result code
         const bool ok = !scan_results.empty();
         Finish(ok ? ResultSuccess : ResultPendingConnection);
     }

src/core/internal_network/wifi_scanner.h

@@ -16,7 +16,7 @@ struct ScanData {
     u8 quality{};
     u32 flags{};
 };
-static_assert(sizeof(ScanData) <= 0x2C, "ScanData layout changed – update conversions!");
+static_assert(sizeof(ScanData) <= 0x2C, "ScanData layout changed - update conversions!");
 
 std::vector<Network::ScanData> ScanWifiNetworks(std::chrono::milliseconds deadline);
 }