complete bin/cvt-submission.sh

Successfully tested `bin/cvt-submission.sh` on a new entry in a new
year that was generated from a submission entry.number directory via
`sbin/post-collect.sh` from the submit tools.

Changed `bin/cvt-submission.sh` prompts to use "[Y,n]" and to default to yes.

The `bin/cvt-submission.sh` processes and appends YYYY/dir to `.allyear`.

Improved 215 error message and exit code from `bin/subst.entry-navbar.awk`.

Changed `bin/cvt-submission.sh` VERSION from "2.0.3 2025-05-18"
to "2.0.4 2025-05-18".

Changed `bin/output-index-author.sh` VERSION from "2.0.0 2025-03-13"
to "2.0.1 2025-05-18".

Changed `bin/output-index-inventory.sh` VERSION from "2.0.0 2025-03-13"
to "2.0.1 2025-05-18".

Changed `bin/output-index-inventory.sh` VERSION from "2.0.1 2025-05-17"
to "2.0.2 2025-05-18".

Changed `bin/subst.entry-index.sh` VERSION from "2.0.1 2025-05-17"
to "2.0.2 2025-05-18".

Changed `bin/subst.entry-navbar.awk` VERSION from "1.3.1 2025-05-17"
to "1.3.2 2025-05-18".

Update sitemap.

Tested the above via `make update` on macOS.

bin/subst.entry-index.sh

@@ -136,7 +136,7 @@ export LC_ALL="C"
 
 # set variables referenced in the usage message
 #
-export VERSION="2.0.1 2025-05-17"
+export VERSION="2.0.2 2025-05-18"
 NAME=$(basename "$0")
 export NAME
 export V_FLAG=0
@@ -735,7 +735,7 @@ echo "HEADER_3=$ABSTRACT"
 awk -v entry_path="$YYYY_DIR" -f "$ENTRY_NAVBAR_AWK" "$DOT_ALLYEAR"
 status="$?"
 if [[ $status -ne 0 ]]; then
-    echo "$0: ERROR: subst.entry-navbar.awk failed, error: $status" 1>&2
+    echo "$0: ERROR: awk -v entry_path=$YYYY_DIR -f $ENTRY_NAVBAR_AWK $DOT_ALLYEAR failed, error: $status" 1>&2
     exit 1
 fi