yuzu qt: Revert some usages of string_view

Causes a heap-use-after free reported by AddressSanitizer. This makes
use of std::filesystem::path, but due to that we have to use their
string() function which may not work for all characters.

src/yuzu/configuration/configure_per_game.h

@@ -28,7 +28,8 @@ class ConfigurePerGame : public QDialog {
     Q_OBJECT
 
 public:
-    explicit ConfigurePerGame(QWidget* parent, u64 title_id, std::string_view file_name);
+    // Cannot use std::filesystem::path due to https://bugreports.qt.io/browse/QTBUG-73263
+    explicit ConfigurePerGame(QWidget* parent, u64 title_id, const std::string& file_name);
     ~ConfigurePerGame() override;
 
     /// Save all button configurations to settings file