Show state, number of comments and failing checks in browse view

### Describe the problem

The table in the browse view does not give any indication about metadata of a translation. It would be useful to see information about the state, the amount of comments and the amount of failing checks at a glance, without having to change the filtering.

Additionally, because it's possible to sort by _number of comments_ or _number of failing checks_, the amount it sorts by should be shown in the table.

### Solution brainstorm

Show the unit's state and the amount of comments and/or failing checks in a compact form, right-aligned and the end of the table.

- State could be shown as a icon. This would probably need some decision which icons fit which state. And for consistency the icon could also be shown in the translate view.
- Comments could be a speech bubble with a number, e.g. `💬 12`
- Failing checks could be the same red exclamation mark as in the translate view, with a number

### Describe alternatives you have considered

_No response_

### Screenshots

_No response_

### Additional context

_No response_