Improve dashboard UI layout and status aggregation

- Move hosts panel to left side above system panel
- Add dynamic column layout for hosts based on available width
- Fix status aggregation to properly calculate host status from widgets
- Align service panel columns with header
- Use blue color for metrics without status indicators
- Add offline host popup overlay
- Use foreground color for panel titles

shared/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cm-dashboard-shared"
-version = "0.1.278"
+version = "0.1.280"
 edition = "2021"
 
 [dependencies]