feat: move health check to header (#218)

* feat: initial work to move status check into header

* chore: tests & tidy ups

* chore: UI tidy up

* fix: header menu spacing

Author: alex-mcgovern

knip.ts

@@ -0,0 +1,10 @@
+import type { KnipConfig } from "knip";
+
+const config: KnipConfig = {
+  entry: ["src/main.tsx"],
+  ignore: ["src/api/generated/**/*"],
+  ignoreDependencies: ["husky"],
+  project: ["src/**/*.{js,jsx,ts,tsx}"],
+};
+
+export default config;