Update Play Store listing and add Catalan translation

briar-android/fastlane/update-metadata.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+tx pull -a -r briar.google-play-full-description,briar.google-play-short-description
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+
+for LANG_DIR in "$DIR"/metadata/android/*; do
+  if [[ "$LANG_DIR" == *en-US ]]; then
+    continue
+  fi
+  if [[ -f "$LANG_DIR/full_description.txt" ]] && [[ -f "$LANG_DIR/short_description.txt" ]]; then
+    # every language uses the same app title
+    cp "$DIR/metadata/android/en-US/title.txt" "$LANG_DIR/title.txt"
+    echo "$LANG_DIR"
+  else
+    # not complete, remove
+    rm -r "$LANG_DIR"
+  fi
+done