Slice address in push mirror list

[JakobDev]

I noticed that it is possible to break the push mirror list by entering a too long URL. This should fix it.

Before	After

[wxiaoguang]

IMO word-breaking could be better for such case.

If you truncate the address, you won't be able to read it / copy it fully.

With word-breaking, you get a multiple-line field on the UI and can see the full address.

[wxiaoguang]

#21251 could be an example, it fixes the long texts in container table.