mgr/dashboard: Fix loading states in storage overview card

mgr/dashboard: Fix loading states in storage overview card

Fixes https://tracker.ceph.com/issues/75321
Fixes https://tracker.ceph.com/issues/75299

- removes storage type
- stabilizes overview card for loading data
- raw capcity shown when promethues not there
- multiple refresh intervals which may vcause sync issues and bugs hence moved the logic to parent - overview component
- Now all queries are updated at 5 s interval except data consumption - using promethues interval. This needs more refactor hence would do in a later PR

Signed-off-by: Afreen Misbah <afreen@ibm.com>