added some bar utilities and powermenu

widget/Ram.tsx

@@ -0,0 +1,13 @@
+import { Variable } from "astal";
+
+export default function Ram() {
+    const cpu_usage = Variable<string>("").poll(1000, () =>
+        computeCPU())
+
+    return <box className="cpu">
+        <label 
+            className="Time"
+            onDestroy={() => cpu_usage.drop()}
+            label={cpu_usage()} />
+    </box>
+}