Update node+angular deps (#3153)

- node to the most recent LTS version
- angular dependencies to 22.x rather than 21.x
- eslint to 10.7 (the old version was quite old)

Deployed to alpha and everything looks good. The Typescript changes
were all done by the migration (nothing manually).

G.1 numbers 8 and 9

console-webapp/tsconfig.app.json

@@ -5,11 +5,14 @@
     "outDir": "./out-tsc/app",
     "types": []
   },
-  "files": [
-    "src/main.ts",
-    "src/polyfills.ts"
-  ],
-  "include": [
-    "src/**/*.d.ts"
-  ]
+  "files": ["src/main.ts", "src/polyfills.ts"],
+  "include": ["src/**/*.d.ts"],
+  "angularCompilerOptions": {
+    "extendedDiagnostics": {
+      "checks": {
+        "nullishCoalescingNotNullable": "suppress",
+        "optionalChainNotNullable": "suppress"
+      }
+    }
+  }
 }