Note: For GCC there are still a huge number of `-Warray-bounds` warnings
coming from `externals/dynarmic`.  I could have added a workaround in
`externals/CMakeLists.txt` similar to what this PR does for other
externals, but given Dynarmic's close affiliation with Yuzu, it would be
better to fix it upstream.

Besides that, on my machine, this makes the build warning-free except
for some warnings from glslangValidator and AutoMoc.

Details:

- Disable some warnings in externals.

- Disable `-Wnullability-completeness`, which is a Clang warning triggered
  by the Vulkan SDK where if any pointers in the header are marked
  _Nullable, it wants all pointers to be marked _Nullable or _Nonnull.
  Most of them are, but some aren't.  Who knows why.

- `src/web_service/verify_user_jwt.cpp`: Disable another warning when
  including `jwt.hpp`.

- `src/input_common/input_poller.cpp`: Add missing `override` specifiers.

- src/common/swap.h: Remove redundant `operator&`.  In general, this
  file declares three overloads of each operator.  Using `+` as an
  example, the overloads are:

  - a member function for `swapped_t + integer`
  - a member function for `swapped_t + swapped_t`
  - a free function for `integer + swapped_t`

  But for `operator&`, there was an additional free function for
  `swapped_t + integer`, which was redundant with the member function.
  This caused a GCC warning saying "ISO C++ says that these are
  ambiguous".

ui: Fixed inverted controls on ReverseSlider widgets

android: Use appCategory to specify the app is a game

filesystem: Return correct error for RenameFile when dest_path already exists

yuzu/main: Ensure NCAs are registered in content provider when launching from CLI

registered_cache: create fake CNMT entries for program updates of multiprogram applications (#11319)

android: jni: ensure NCAs from loaded filepath are registered in manual content provider

fixes: #11236

nvhost_as_gpu: ensure mappings are aligned to big page size when deallocated

Fixes updates and DLC not being loaded when launching yuzu from the command line.

Similar to https://github.com/yuzu-emu/yuzu/pull/11357.
Fixes https://github.com/yuzu-emu/yuzu/issues/8352,

Allows Grid Autosport to boot.

Fixes https://github.com/yuzu-emu/yuzu/issues/8287.

sockets: avoid locking around socket session calls

game_list_worker: Display correct size for NAX games

This was a regression from https://github.com/yuzu-emu/yuzu/pull/1837.

Fixes https://github.com/yuzu-emu/yuzu/issues/1938.

android: Search game directory recursively

Add macos moltenvk bundle, Add copy moltevk dylib script

yuzu-qt: Add configuration for screenshot resolution

Shader Recompiler: implement textureGrad 3D

android: lint: Delete generated ktlint folder between builds

There's a bug in ktlint where it will run into an error if you build the project, delete a source file, and then build again. It will be unable to find the file you deleted and can't recover until these files are deleted. This just deletes those files before every run.

file_sys/card_image: support dumps with prepended key area

patch_manager: apply manual HTML patches when present

host_shaders: ASTC compute shader optimizations

vfs: expand support for NCA reading

Support masked depthstencil clears

Mark accelerated DMA destination buffers and images as GPU-modified