ui: Do not pass missing paths to SDL_ShowOpenFileDialog #53

Job	Run time
Pre-release / Build / Create source package	1m 14s
Pre-release / Build / macOS / Build for macOS (x86_64, debug)	1m 5s
Pre-release / Build / macOS / Build for macOS (arm64, release)	1m 3s
Pre-release / Build / Windows / Build for Windows (arm64, release)	2m 15s
Pre-release / Build / Linux / Build for Ubuntu (x86_64, release)	9m 44s
Pre-release / Build / Windows / Build for Windows (arm64, debug)	2m 52s
Pre-release / Build / macOS / Build for macOS (arm64, debug)	51s
Pre-release / Build / Windows / Build for Windows (x86_64, release)	2m 25s
Pre-release / Build / macOS / Build for macOS (x86_64, release)	57s
Pre-release / Build / Linux / Build for Ubuntu (aarch64, debug)	5m 45s
Pre-release / Build / Linux / Build for Ubuntu (aarch64, release)	6m 16s
Pre-release / Build / Linux / Build for Ubuntu (x86_64, debug)	8m 37s
Pre-release / Build / Windows / Build for Windows (x86_64, debug)	2m 38s
Pre-release / Build / macOS / Build macOS Universal bundle (${{ matrix.configuration }})	0s
Pre-release / Build / Windows / Generate PDB for Windows (arm64, release)	22s
Pre-release / Build / Windows / Generate PDB for Windows (arm64, debug)	26s
Pre-release / Build / Windows / Generate PDB for Windows (x86_64, release)	21s
Pre-release / Build / Windows / Generate PDB for Windows (x86_64, debug)	30s
Pre-release / Delete pre-release	0s
Pre-release / Create release	-1s
	47m 20s

Provide feedback