Fix race condition in reload.sh causing -600 error

Add delay after pkill to give Launch Services time to release the
old process handle before opening the new app.

scripts/reload.sh

@@ -204,6 +204,7 @@ if [[ -n "$TAG" && "$APP_NAME" != "$SEARCH_APP_NAME" ]]; then
 fi
 
 pkill -f "${APP_PATH}/Contents/MacOS/" || true
+sleep 0.3
 CMUXD_SRC="$PWD/cmuxd/zig-out/bin/cmuxd"
 if [[ -d "$PWD/cmuxd" ]]; then
   (cd "$PWD/cmuxd" && zig build -Doptimize=ReleaseFast)