yuzu's default theme doesn't specify everything, which is fine for
windows, but in linux anything unspecified is set to the users theme.

Symptoms of this are that a linux user with a dark theme won't think
to change the theme to a dark theme when first using yuzu

Idea here is to try and support arbitrary themes on linux.

preliminary work on a "default_dark" theme, used only as overlay
for any themes that are measured to be dark mode.

Other work done:

FreeDesktop standard icon names:
plus -> list-add
delete refresh, we use view-refresh

remove duplicated icons for qdarkstyle_midnight_blue
referencing icon aliases in the qrc files is the way to go

Note:
Dynamic style changing doesn't appear to work with AppImage

renderer_vulkan: add format fallbacks for R16G16B16_SFLOAT, R16G16B16_SSCALED, R8G8B8_SSCALED

tidy up github actions

core/loader: remove ELF loader

Update translations (2022-08-01)

video_core: stop waiting for shader compilation on user cancel

qt: reset progress bar after shader compilation

Properly write out the command buffer when serving close request

renderer_opengl: delete shader source after linking

ci.yml: REUSE task should only run on yuzu-emu/yuzu repository
verify.yml: #8659 is a better fix to the discord-rpc dirty flag

cmake,ci: vcpkg leftovers

common: move forwarded value into SPSCQueue

audio_core: fix -Wuninitialized when compiling with ASan

ci: use dep5 for GitHub issue template files

yuzu: Add incremental steps to volume hotkeys

vcpkg: Add Catch2 2.13.9

Catch2 >= 3.0 is not compatible with earlier versions, and for now we
must override the desired version in our vcpkg manifest. We can do this
programmatically by using VCPKG_MANIFEST_FEATURES.

CMakeLists: Search for lz4 CONFIG mode first

vcpkg's lz4 CONFIG cmake script works in Release mode but not in Debug
mode, failing to copy the correct DLLs at compile time.

We still need to search for the regular mode for system-installed
versions.

CMakeLists: Clean up boost exports

Remove some Conan-specific workarounds.

CMakeLists: Use vcpkg for MSVC by default

Not enabling it generally since it's much easier to have system
dependencies installed for Linux and MinGW.

Revert "ci: Enable building with Visual Studio 2022"

externals: Use yuzu-emu/discord-rpc to provide Discord integration

Our fork includes a commit to disable clang-format, preventing the dirty
flag from being set when building yuzu on CI.

[Audio] Avoid an out-of-bounds span write in depop prepare

ci/linux: Exclude libwayland-client from AppImage

build: Ship vcpkg dlls with MSVC pr-verify builds

gpu_thread: Use the previous MPSCQueue implementation

service: irs: Implement clustering processor

applet/swkbd: Implement optional symbol keys 

exit gracefully on sigint/sigterm