fix(client): green-tone the empty state illustration

The foreground card was painted in blue (#EEF4FE/#7DA8E8 etc.); recoloured to the brand green family so the illustration matches the rest of the UI.

client/src/Components/design-elements/EmptyStateIllustration.tsx

@@ -11,18 +11,18 @@ const PALETTE = {
 		backFill: "#F5F7FA",
 		backStroke: "#D5DBE3",
 		backInner: "#B6C2CF",
-		frontFill: "#EEF4FE",
-		frontStroke: "#7DA8E8",
-		frontInner: "#7DA8E8",
+		frontFill: "#EAF5F0",
+		frontStroke: "#7DBFAA",
+		frontInner: "#4DAF94",
 	},
 	dark: {
 		grid: "#3A4452",
 		backFill: "#475569",
 		backStroke: "#64748B",
 		backInner: "#CBD5E1",
-		frontFill: "#1E40AF",
-		frontStroke: "#60A5FA",
-		frontInner: "#DBEAFE",
+		frontFill: "#0F5D4A",
+		frontStroke: "#4DAF94",
+		frontInner: "#B5E2D2",
 	},
 };