Refactor entire project (#39)

- Use more modern TypeScript conventions
- Use JavaScript Kubernetes Client
- Add unit tests
- Add integration tests
- Add TypeScript compile verify workflow
- Switch codeowners

src/types/cluster.ts

@@ -0,0 +1,16 @@
+export enum Cluster {
+  ARC = "arc",
+  GENERIC = "generic",
+}
+
+/**
+ * Converts a string to the Cluster enum
+ * @param str The cluster type (case insensitive)
+ * @returns The Cluster enum or undefined if it can't be parsed
+ */
+export const parseCluster = (str: string): Cluster | undefined =>
+  Cluster[
+    Object.keys(Cluster).filter(
+      (k) => Cluster[k].toString().toLowerCase() === str.toLowerCase()
+    )[0] as keyof typeof Cluster
+  ];