The official documentation for `SHGetFolderPathW()` says:

> Note  As of Windows Vista, this function is merely a wrapper for
> SHGetKnownFolderPath. The CSIDL value is translated to its associated
> KNOWNFOLDERID and then SHGetKnownFolderPath is called. New
> applications should use the known folder system rather than the older
> CSIDL system, which is supported only for backward compatibility.

Source:
<https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetfolderpathw>

This change makes it so that platformdirs uses `SHGetKnownFolderPath()`
instead of `SHGetFolderPathW()`. This change also removes references to
the old CSIDL system and replaces them with references wo the FOLDERID
system.

Closes tox-dev#348.

The official documentation for `SHGetFolderPathW()` says:

> Note  As of Windows Vista, this function is merely a wrapper for
> SHGetKnownFolderPath. The CSIDL value is translated to its associated
> KNOWNFOLDERID and then SHGetKnownFolderPath is called. New
> applications should use the known folder system rather than the older
> CSIDL system, which is supported only for backward compatibility.

Source:
<https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetfolderpathw>

This change makes it so that platformdirs uses `SHGetKnownFolderPath()`
instead of `SHGetFolderPathW()`. This change also removes references to
the old CSIDL system and replaces them with references wo the FOLDERID
system.

Closes tox-dev#348.

TODO: Test in CI before submitting.

The official documentation for `SHGetFolderPathW()` says:

> Note  As of Windows Vista, this function is merely a wrapper for
> SHGetKnownFolderPath. The CSIDL value is translated to its associated
> KNOWNFOLDERID and then SHGetKnownFolderPath is called. New
> applications should use the known folder system rather than the older
> CSIDL system, which is supported only for backward compatibility.

Source:
<https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetfolderpathw>

This change makes it so that platformdirs uses `SHGetKnownFolderPath()`
instead of `SHGetFolderPathW()`. This change also removes references to
the old CSIDL system and replaces them with references wo the FOLDERID
system.

Closes tox-dev#348.

The official documentation for `SHGetFolderPathW()` says:

> Note  As of Windows Vista, this function is merely a wrapper for
> SHGetKnownFolderPath. The CSIDL value is translated to its associated
> KNOWNFOLDERID and then SHGetKnownFolderPath is called. New
> applications should use the known folder system rather than the older
> CSIDL system, which is supported only for backward compatibility.

Source:
<https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetfolderpathw>

This change makes it so that platformdirs uses `SHGetKnownFolderPath()`
instead of `SHGetFolderPathW()`. This change also removes references to
the old CSIDL system and replaces them with references wo the FOLDERID
system.

Closes tox-dev#348.

TODO:
• Run in GitHub CI.

The official documentation for `SHGetFolderPathW()` says:

> Note  As of Windows Vista, this function is merely a wrapper for
> SHGetKnownFolderPath. The CSIDL value is translated to its associated
> KNOWNFOLDERID and then SHGetKnownFolderPath is called. New
> applications should use the known folder system rather than the older
> CSIDL system, which is supported only for backward compatibility.

Source:
<https://learn.microsoft.com/en-us/windows/win32/api/shlobj_core/nf-shlobj_core-shgetfolderpathw>

This change makes it so that platformdirs uses `SHGetKnownFolderPath()`
instead of `SHGetFolderPathW()`. This change also removes references to
the old CSIDL system and replaces them with references wo the FOLDERID
system.

Closes tox-dev#348.