mgr/dashboard: add custom filtering rules to the table

```
<cd-table #table
                id="pool-list"
                [data]="pools"
                [columns]="columns"
                selectionType="single"
                [hasDetails]="true"
                [status]="tableStatus"
                [autoReload]="-1"
                (fetchData)="taskListService.fetch()"
                (setExpandedRow)="setExpandedRow($event)"
                (updateSelection)="updateSelection($event)"
                [customFilter]="true" # set this to true
                (customFilterChange)="onCustomFilterChange($event)" #
get the new rules from here>
```

Fixes: https://tracker.ceph.com/issues/77290
Signed-off-by: Nizamudeen A <nia@redhat.com>