Fix 14 editorconfig/biome errors across 6 files: update biome schema version, replace tabs with spaces, fix continuation indents, and wrap long lines. Remove dangling OrbStack fish completion symlinks.
* feat: switch to biome, apply formatting, shellcheck * chore: apply cr comments * chore: few config tweaks, shellcheck hook now py-based * chore: lint fixes and pr comments * chore(lint): megalinter, and other fixes Signed-off-by: Ismo Vuorinen <ismo@ivuorinen.net>