docs/nia: simplify api and cli url paths (#10199)

website/data/docs-nav-data.json

@@ -584,7 +584,7 @@
         "routes": [
           {
             "title": "Overview",
-            "path": "nia/api/api-overview"
+            "path": "nia/api"
           },
           {
             "title": "Status",
@@ -601,7 +601,7 @@
         "routes": [
           {
             "title": "Overview",
-            "path": "nia/cli/cli-overview"
+            "path": "nia/cli"
           },
           {
             "title": "task",

website/redirects.next.js

@@ -1177,6 +1177,16 @@ module.exports = [
     destination: '/docs/nia/configuration',
     permanent: true,
   },
+  {
+    source: '/docs/nia/api/api-overview',
+    destination: '/docs/nia/api',
+    permanent: true,
+  },
+  {
+    source: '/docs/nia/cli/cli-overview',
+    destination: '/docs/nia/cli',
+    permanent: true,
+  },
   {
     source: '/use-cases/network-middleware-automation',
     destination: '/use-cases/network-infrastructure-automation',