Description

Add the ability to pin nodes so they always appear at the top of the nodes list.

Requirements

• Add isPinned: Bool to NodeInfo model
• Add isPinned attribute to MHNodeEntity (CoreData)
• Persist pin state via MeshCoreDataStore.updateNodePinState()
• Sort pinned nodes first in NodesTabView
• Add Pin/Unpin context menu in node list
• Add pin toggle button in NodeInfoSheet
• Show pin icon next to pinned node names
• Hydrate pin state on app launch