[desktop, fs] main_window separation; fix Ryujinx save data link issues (#2929)

Some genius decided to put the entire MainWindow class into main.h and
main.cpp, which is not only horrific practice but also completely
destroys clangd beyond repair. Please, just don't do this.

(this will probably merge conflict to hell and back)

Also, fixes a bunch of issues with Ryujinx save data link:
- Paths with spaces would cause mklink to fail
- Add support for portable directories
- Symlink detection was incorrect sometimes(????)
- Some other stuff I'm forgetting

Furthermore, when selecting "From Eden" and attempting to save in Ryujinx, Ryujinx would destroy the link for... some reason? So to get around this we just copy the Eden data to Ryujinx then treat it like a "From Ryujinx" op

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2929
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>

src/yuzu/data_dialog.cpp

@@ -2,12 +2,11 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 #include "data_dialog.h"
-#include "core/hle/service/acc/profile_manager.h"
 #include "frontend_common/data_manager.h"
-#include "qt_common/qt_common.h"
 #include "qt_common/util/content.h"
 #include "qt_common/qt_string_lookup.h"
 #include "ui_data_dialog.h"
+#include "util/util.h"
 
 #include <QDesktopServices>
 #include <QFileDialog>
@@ -26,17 +25,18 @@ DataDialog::DataDialog(QWidget *parent)
     ui->setupUi(this);
 
     // TODO: Should we make this a single widget that pulls data from a model?
-#define WIDGET(name) \
+#define WIDGET(label, name) \
     ui->page->addWidget(new DataWidget(FrontendCommon::DataManager::DataDir::name, \
                                        QtCommon::StringLookup::name##Tooltip, \
                                        QStringLiteral(#name), \
-                                       this));
+                                       this)); \
+    ui->labels->addItem(label);
 
-    WIDGET(Shaders)
-    WIDGET(UserNand)
-    WIDGET(SysNand)
-    WIDGET(Mods)
-    WIDGET(Saves)
+    WIDGET(tr("Shaders"), Shaders)
+    WIDGET(tr("UserNAND"), UserNand)
+    WIDGET(tr("SysNAND"), SysNand)
+    WIDGET(tr("Mods"), Mods)
+    WIDGET(tr("Saves"), Saves)
 
 #undef WIDGET
 
@@ -82,7 +82,7 @@ void DataWidget::clear()
 {
     std::string user_id{};
     if (m_dir == FrontendCommon::DataManager::DataDir::Saves) {
-        user_id = selectProfile();
+        user_id = GetProfileIDString();
     }
     QtCommon::Content::ClearDataDir(m_dir, user_id);
     scan();
@@ -92,7 +92,7 @@ void DataWidget::open()
 {
     std::string user_id{};
     if (m_dir == FrontendCommon::DataManager::DataDir::Saves) {
-        user_id = selectProfile();
+        user_id = GetProfileIDString();
     }
     QDesktopServices::openUrl(QUrl::fromLocalFile(
         QString::fromStdString(FrontendCommon::DataManager::GetDataDirString(m_dir, user_id))));
@@ -102,7 +102,7 @@ void DataWidget::upload()
 {
     std::string user_id{};
     if (m_dir == FrontendCommon::DataManager::DataDir::Saves) {
-        user_id = selectProfile();
+        user_id = GetProfileIDString();
     }
     QtCommon::Content::ExportDataDir(m_dir, user_id, m_exportName);
 }
@@ -111,7 +111,7 @@ void DataWidget::download()
 {
     std::string user_id{};
     if (m_dir == FrontendCommon::DataManager::DataDir::Saves) {
-        user_id = selectProfile();
+        user_id = GetProfileIDString();
     }
     QtCommon::Content::ImportDataDir(m_dir, user_id, std::bind(&DataWidget::scan, this));
 }
@@ -131,37 +131,3 @@ void DataWidget::scan() {
     watcher->setFuture(
         QtConcurrent::run([this]() { return FrontendCommon::DataManager::DataDirSize(m_dir); }));
 }
-
-std::string DataWidget::selectProfile()
-{
-    const auto select_profile = [this] {
-        const Core::Frontend::ProfileSelectParameters parameters{
-            .mode = Service::AM::Frontend::UiMode::UserSelector,
-            .invalid_uid_list = {},
-            .display_options = {},
-            .purpose = Service::AM::Frontend::UserSelectionPurpose::General,
-        };
-        QtProfileSelectionDialog dialog(*QtCommon::system, this, parameters);
-        dialog.setWindowFlags(Qt::Dialog | Qt::CustomizeWindowHint | Qt::WindowTitleHint
-                              | Qt::WindowSystemMenuHint | Qt::WindowCloseButtonHint);
-        dialog.setWindowModality(Qt::WindowModal);
-
-        if (dialog.exec() == QDialog::Rejected) {
-            return -1;
-        }
-
-        return dialog.GetIndex();
-    };
-
-    const auto index = select_profile();
-    if (index == -1) {
-        return "";
-    }
-
-    const auto uuid = QtCommon::system->GetProfileManager().GetUser(static_cast<std::size_t>(index));
-    ASSERT(uuid);
-
-    const auto user_id = uuid->AsU128();
-
-    return fmt::format("{:016X}{:016X}", user_id[1], user_id[0]);
-}