refactor(components): split components.js into separate files and add loader; app waits for components before init

public/scripts/components/ComponentsLoader.js

@@ -0,0 +1,16 @@
+(function(){
+	// Simple readiness flag once all component constructors are present
+	function allReady(){
+		return !!(window.PrimaryNodeComponent && window.ClusterMembersComponent && window.NodeDetailsComponent && window.FirmwareComponent && window.ClusterViewComponent && window.FirmwareViewComponent && window.TopologyGraphComponent && window.MemberCardOverlayComponent && window.ClusterStatusComponent);
+	}
+	window.waitForComponentsReady = function(timeoutMs = 5000){
+		return new Promise((resolve, reject) => {
+			const start = Date.now();
+			(function check(){
+				if (allReady()) return resolve(true);
+				if (Date.now() - start > timeoutMs) return reject(new Error('Components did not load in time'));
+				setTimeout(check, 25);
+			})();
+		});
+	};
+})();