fix: also copy output of grim to clipboard

config/scripts/.local/scripts/ghostty-capture

@@ -25,7 +25,7 @@ file=${1:-$(wl-paste --no-newline)}
     exit 1
 }
 
-[ -f "$file" ] || {
+[ -e "$file" ] || {
     echo "File does not exist: $file" >&2
     exit 1
 }