beeadf93f6
we improve the icons in the tree and the resource grid by differentiating between cluster online/offline status and no rrd data when we have no rrd data from a node/storage, instead of showing a red x (which is scary) even if the node is reachable by corosync (which confused quite a bit of people, because we show all nodes as online in the datacenter summary), we show the node/storage with a '?' this signals that something is wrong with this node, even if we can reach it via cluster methods this rewrite of the logic includes a refactoring of the method of getting the icon, because we want the same icons in the tree and the grid, and an optimization on how we use the css classes (introducing a x-grid-custom-icon class) Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>