chore: add sync.sh for copying to main packages repo

sync.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Set the destination directory
+DEST_DIR="$HOME/Code/typst-packages-fork/packages/preview"
+
+# Ensure the destination directory exists
+mkdir -p "$DEST_DIR"
+
+# Loop through all directories in the current directory
+for dir in preview/*/; do
+  if [ -d "$dir" ]; then
+    # Remove trailing slash from directory name
+    dir=${dir%/}
+
+    echo "Syncing $dir to $DEST_DIR/$dir..."
+
+    # Use rsync with these options:
+    # -a: archive mode (preserves permissions, timestamps, etc.)
+    # -v: verbose
+    # -z: compress during transfer
+    # --delete: remove files in dest that don't exist in source
+    rsync -avz --delete "$dir/" "$DEST_DIR/$dir/"
+  fi
+done
+
+echo "Sync complete!"