add script to calculate i18n progress

scripts/i18n.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+folder="src/i18n/locales"
+base_file="$folder/en.json"
+
+# Get all leaf keys from the English base file
+base_keys=$(jq -r 'paths(scalars) | map(tostring) | join(".")' "$base_file")
+total=$(echo "$base_keys" | wc -l)
+
+# Loop through all JSON files in the folder
+for file in "$folder"/*.json; do
+  name=$(basename "$file" .json)
+  translated_keys=$(jq -r 'paths(scalars) | map(tostring) | join(".")' "$file")
+  done=$(comm -12 <(echo "$base_keys" | sort) <(echo "$translated_keys" | sort) | wc -l)
+  percent=$((100 * done / total))
+  check="[ ]"
+  [ "$percent" -eq 100 ] && check="[x]"
+  printf "%s %s (%d%%)\n" "- $check" "$name" "$percent"
+done