metrics: fix grid position in TiKV Details (#11936)
metrics: fix grid position in TiKV Details (#11936)

ref tikv/tikv#11119

Fix grid positions in TiKV Details dashboard.

Signed-off-by: tabokie <xy.tao@outlook.com>

Co-authored-by: Ti Chi Robot <040e6455cde1c91e876ec337e785ce913eacba35@tidb.io>
BusyJay/tikv,BusyJay/tikv,BusyJay/tikv,BusyJay/tikv