feat: move kubernetes dir into templates to support jinja2 across all files (#831)

template/templates/kubernetes/apps/networking/cloudflared/app/secret.sops.yaml.j2

@@ -0,0 +1,14 @@
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: cloudflared-secret
+  namespace: networking
+stringData:
+  TUNNEL_ID: "{{ bootstrap_cloudflare_tunnel_id }}"
+  credentials.json: |
+    {
+      "AccountTag": "{{ bootstrap_cloudflare_account_tag }}",
+      "TunnelSecret": "{{ bootstrap_cloudflare_tunnel_secret }}",
+      "TunnelID": "{{ bootstrap_cloudflare_tunnel_id }}"
+    }