fix appimage shortcuts (#137)

Properly recognizes AppImage launches and deduplicates some code b/t
home menu and game list shortcuts

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

Reviewed-on: #137
Co-authored-by: swurl <swurl@swurl.xyz>
Co-committed-by: swurl <swurl@swurl.xyz>

src/yuzu/main.h

@@ -178,6 +178,8 @@ public:
     bool DropAction(QDropEvent* event);
     void AcceptDropEvent(QDropEvent* event);
 
+    std::filesystem::path GetShortcutPath(GameListShortcutTarget target);
+
 signals:
 
     /**
@@ -593,6 +595,15 @@ private:
     static std::array<int, 3> sig_interrupt_fds;
 #endif
 
+    std::filesystem::path GetEdenCommand();
+
+    void CreateShortcut(const std::string& game_path,
+                        const u64 program_id,
+                        const std::string& game_title,
+                        GameListShortcutTarget target,
+                        std::string arguments,
+                        const bool needs_title);
+
 protected:
     void dropEvent(QDropEvent* event) override;
     void dragEnterEvent(QDragEnterEvent* event) override;