[ENHANCEMENT] Better Windows 11 Toolbar Icons (Fluent Design)

[edgarchinchilla]

Based on one of the key objectives of NanaZip (to be a Modern Windows 11 alternative of 7-Zip), would be great if the toolbar icons are changed to match OS "Fluent" Design.

As an example:

• Windows 11 Theme for 7-ZIP on Reddit

Thaks to all developers!