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

tests/expected-kubeconfig.json

@@ -0,0 +1,27 @@
+{
+  "apiVersion": "v1",
+  "kind": "Config",
+  "clusters": [
+    {
+      "name": "example",
+      "cluster": {
+        "server": "http://example.com:8080",
+        "insecure-skip-tls-verify": false
+      }
+    }
+  ],
+  "users": [],
+  "contexts": [
+    {
+      "name": "example",
+      "context": {
+        "cluster": "example",
+        "name": "example",
+        "user": "example",
+        "namespace": "example"
+      }
+    }
+  ],
+  "preferences": {},
+  "current-context": "example"
+}