Add the ability to clone a post from an other, useful to handle different platforms where we want to change for example the text length.

Now if we receive an error while publishing the post, we save the error in JSON format in the post record. After that, the scheduling system won't try to publish the post again. This helps us avoid making extra API calls, which could use up our allotted quota. The post can still be published manually, or if it gets updated, we'll remove the error information so it can be republished.

I really like tagging posts in Reposter. Now, I want to be able to sort my posts by tags. This will help me organize my posts better and find the right balance between different categories.