Improve Stack management admin view

### Description

We have 304 stacks in production; 12 are active and the rest are inactive. Each release generates another 12 stacks as each is updated.

The current admin view for stacks doesn't scale very well at this level. In particular, the pagination of the inactive stacks makes it very hard to quickly find an old stack; the filtering provided on the table is only filtering the loaded stacks - not the full list.

Now we have far more experience of how we manage the stacks in FFC, there are some quick wins to be had for our own efficiency.

1. Fix the filtering of the table to search the whole dataset (meaning an API call) rather than just the loaded data
2. Make the table rows more compact - there's more detail than we really need

### Epic/Story

_No response_

### Have you provided an initial effort estimate for this issue?

I have provided an initial effort estimate