grafana: Add plugins, disable HTML sanitization

machines/saga/grafana/default.nix

@@ -1,17 +1,28 @@
-{ config, ... }:
+{ pkgs, config, ... }:
 {
   services.grafana = {
     enable = true;
+    declarativePlugins = with pkgs.grafanaPlugins; [
+      grafana-piechart-panel
+      grafana-polystat-panel
+      grafana-clock-panel
+    ];
     settings = {
       log = {
         level = "info";
       };
+
+      panels = {
+        disable_sanitize_html = true;
+      };
+
       server = {
         domain = "saga.datarift.nl";
         enforce_domain = true;
         http_addr = "0.0.0.0";
         root_url = "https://saga.datarift.nl";
       };
+
       "auth.generic_oauth" = {
         enabled = true;
         name = "Keycloak";