This reflects the current behavior: Light = System default. If your
system is set to dark theme, then Light = Dark, which is a bit confusing
for the end user.

In this PR, I propose to change "Light" with "Default". This way, the
user has "Default" and "Default Colorful", which will apply the system
theme. Now that the Flatpak respects the system theme, I think this
makes much more sense.

I also simplified the theme update. Before the code was branching
between the default theme and the others, but I think we can have
something simpler by forcing the default theme if no theme is defined in
the settings, or if the selected theme doesn't exist. And if there's an
error, tell the theme name in the error message.

Logging: Impl refactor

program_metadata: Add default ThreadInfo capability

applets/swkbd: Skip text checking if the text has been confirmed

The text check message can be encoded in UTF-8.

Confirm means that the text has already been checked by the application to be correct, but is asking the user for confirmation.
The confirmation text itself seems to be corrupted though, this needs to be investigated.

Fixes the software keyboard in Famicom Detective Club: The Missing Heir

- Used by Just Dance 2022

- Used by Dragon Quest Builders

general: Get the current process program id directly from the system

core: Reorder perf_stats destruction order on Shutdown

Avoids the gpu_core using perf_stats after it's been freed.

service: aoc: Stub more 13.x functions used by Animal Crossing

This allows us to avoid including KProcess' header file in files that only need to get the current process' program id.

core: Reduce unused header includes

Used by Animal Crossing: New Horizons v2.0.0 DLC

Used by Animal Crossing: New Horizons v2.0.0 DLC

service/acc: Rename Unknown160 to InitializeApplicationInfoV2

service: acc: Stub acc:u0 '160'

- Used by Animal Crossing: New Horizons v2.0.0

Since the name is currently unknown, '160' is used as a placeholder.

svc: Correct WaitSynchronization num_handles param type

num_handles is a s32

ShaderCache: Order Phi Arguments from farthest away to nearest.

gl_rasterizer: Remove unused includes

common, result: Implement a subset of std::expected and use it in ResultVal

This is made obsolete by the presence of implicit constructors.

This amends the documentation slightly to reflect the updated interface.

Common::Expected effectively provides the same functions as ResultVal, so we can implement it with this.
This can be replaced with std::expected with minimal effort should it be standardized in the C++ Standard Template Library.

This implementation is based on and is a subset of the proposed implementation of std::expected
https://github.com/TartanLlama/expected/blob/master/include/tl/expected.hpp

Fix memory leak v2

Loop on stop_token and remove final_entry in Entry.
Move Backend thread out of Impl Constructor to its own function.
Add Start function for backend thread.
Use stop token in PopWait and check if entry filename is nullptr before logging.

This removes unused includes, especially the core includes which were causing this file to be recompiled every time files included by those headers are modified.

Update translations (2021-11-01)