Add support for batch operations (delete,start,stop,...)

[hason]

Add support for batch operations (delete,start,stop,...)

[tobegit3hub]

Thanks @hason . You may have used dockerui which provides batch operations to start or stop multiple containers.

But we don't need this with seagull. Because all the operations in the page are asynchronous and responsed quickly. If we want to manipulate multiple containers, we need to select them one by one. We can do it better and just click the operation button directly instead of selecting.

You can try to delete all the deprecated images and that's much better than "batch operations". Feel free to tell more requirements if you want 😃

[tobegit3hub]

I'm gonna close it with wontfix. Feel free to re-open this issue if you really need it 💓