Improve screen reader, keyboard, and High Contrast accessibility (#2518)

* Improve screen reader and keyboard accessibility

* Fix settings page repaint regression

---------

Co-authored-by: jbgrimsby <314385300+jbgrimsby@users.noreply.github.com>

Use VS2022 toolset (due to Win7 support)

VS2022 is the last VS that does support Windows 7.
It seems we have some Win7 users, so for now we will use this toolset
to make sure binaries are compatible with Win7.

Sign with SignPath

Fixes #1732

Fix open/save file dialog getting stuck after Windows 11 update (#2457)

We will run those APIs on separate STA thread and pump messages while
waiting for the dialog to end.

fixes #2431
fixes #2426
fixes #2418
fixes #2417
fixes #2390
fixes #2372
fixes #2371
fixes #2370
fixes #2364
fixes #2361
fixes #2360
fixes #2343
fixes #2332
fixes #2322
fixes #2320
fixes #2319
fixes #2312
fixes #2299

Support for unthemed taskbar (#2369)

* Support for unthemed taskbar

See this discussion:
#2367

* Refactor color handling in StartMenuDLL

Add ARM64 support (#641)

* Add ARM64 build configurations to projects

* StartMenu: add ARM64 support

* Add support for IAT hooking on ARM64

* Add ARM64 support to Classic IE

* Add ARM64 support to installer

NB: WiX 3.14.0.3910 or higher is required to create the MSI

* Revert whitespace change

* Separate x86/x64 and ARM64 installers

* Change suffix of ARM64 binaries

* Put also ARM64 MSI to final installer

* Fix sln

* Build some DLLs as ARM64X

These are meant to be loaded to both x64 and ARM64 processes.
We will compile them as ARM64X (when building for ARM64).
That way they will contain both x64 and ARM64 code paths.

https://learn.microsoft.com/en-us/windows/arm/arm64x-pe

* Make sure x64 installer cannot be installed on ARM64

In case if somebody manually tries to install x64 MSI on ARM64.
This is not supported/working scenario.

---------

Co-authored-by: ge0rdi <ge0rdi@users.noreply.github.com>

Apply taskbar customizations to News and interests

Fixes #676

Fix custom button auto-hiding (#2041)

Update StartMenu.html (#2036)

Display "Searching..." progress always

Commit be8568c that introduced option to disable "See more results" also
changed behavior of "Searching..." item that indicates search in progress.

We will now make sure that the search progress indicator is displayed
always. No matter of options.