feat: --list option to list entries and exit

src/sh/icalendar.sh

@@ -112,7 +112,9 @@ __new() {
   collection=$(printf "%s" "$COLLECTION_LABELS" |
     tr ';' '\n' |
     $FZF \
+      --ansi \
       --prompt="Choose collection> " \
+      --select-1 \
       --no-sort \
       --tac \
       --margin="30%,30%" \
@@ -146,6 +148,9 @@ __new() {
   while [ "$checksum" != "$(cksum "$tmpmd")" ]; do
     tmpfile="$tmpmd.ics"
     if awk -v uid="$uuid" "$AWK_NEW" "$tmpmd" >"$tmpfile"; then
+      if [ ! -d "$ROOT/$collection" ]; then
+        mkdir -p "$ROOT/$collection"
+      fi
       mv "$tmpfile" "$file"
       if [ -n "${GIT:-}" ]; then
         $GIT add "$file"