[desktop] fix save data location, orphaned profiles finder (#2678)

Previously, if the user had their NAND in a nonstandard location,
profiles.dat would be read from the standard Eden path and thus return
effectively garbage data. What this would result in is:

- The Qt profile manager would be completely nonfunctional
- "Open Save Data Location" would put you into the completely wrong
  place
- Games would read from incorrect locations for their saves

To solve this, I made it so that profiles.dat is re-read *after*
QtConfig initializes. It's not the perfect solution, but it works.

Additionally, this adds an orphaned profiles finder:
- walks through the save folders in nand/user/save/000.../
- for each subdirectory, checks to see if profiles.dat contains a
  corresponding UUID
- If not, the profile is "orphaned". It may contain legit save data, so
  let the user decide how to handle it (famous last words)
- Empty profiles are just removed. If they really matter, they're
  instantly recreated anyways.

The orphaned profiles check runs right *after* the decryption keys
check, but before the game list ever gets populated

Signed-off-by: crueter <crueter@eden-emu.dev>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2678
Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

src/core/file_sys/savedata_factory.cpp

@@ -4,7 +4,6 @@
 // SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include <memory>
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
@@ -129,10 +128,6 @@ std::string SaveDataFactory::GetFullPath(ProgramId program_id, VirtualDir dir,
 
     std::string out = GetSaveDataSpaceIdPath(space);
 
-    LOG_INFO(Common_Filesystem, "Save ID: {:016X}", save_id);
-    LOG_INFO(Common_Filesystem, "User ID[1]: {:016X}", user_id[1]);
-    LOG_INFO(Common_Filesystem, "User ID[0]: {:016X}", user_id[0]);
-
     switch (type) {
     case SaveDataType::System:
         return fmt::format("{}save/{:016X}/{:016X}{:016X}", out, save_id, user_id[1], user_id[0]);