Support post slug not only post ID

We encounter that when we move blocks from one env to another (example development to production ) we are having different id to the block ( which is obvious ),

a fix that will allow for blocks to have slug and the shortcode and the reblex_get_block() function to work with both post id or post slug will be very great,

otherwise we have to keep a ‘translation table’ or options and manually edit it everytime we create a new block and have to move it from one env to another.

hopefully you consider this fix