ui3: fix guests icons

[madsi1m]

• add "i" icon to guests table
• align icon types with transfer page
• move delete to the start like transfer page

[github-actions[bot]]

If there are selenium UI results for this code they will be at https://github.com/filesenderuici/filesender/commit/4584b42c5f8c5b58340eb0800c3646409119073f