* fix utf-8 handling around env-vars
* fix file opening errors related to unicode
* add uncaught exception handler in `gk` to ensure something is logged
* gracefully fail if window icon cant be loaded and work with unicode
* linux fix and add changes to vendor file
* git: ignore vs build dir
* cmake: ditch `clang-cl` on windows in favor of actual `clang`
* build: suppress a significant number of warnings
* build: adjust workflows and vendor nasm
* docs: update docs to remove `clang-cl` mentions
* build: fix some copy-paste mistakes in the linux build
* build: remove C++20 compat warnings as that is useful if we want to upgrade