Rename repository name

[filhocf]

Hi @dapphp

I saw some roundcube plugin developers align your plugin project names to "roundcube-".

So, I suggest to you rename this project to "roundcube-attachment_position".

And thanks by your work.

[dapphp]

Hi,

Thanks for adding the translation. I agree the roundcube-plugin-name convention seems to be more widely adopted with current plugins.

I have renamed the repo.

Thanks!