docs: split devtools doc to prepare for upcomming updates (angular#62597)

PR Close angular#62597

Author: JeanMeche

adev/src/app/sub-navigation-data.ts

@@ -767,8 +767,35 @@ const DOCS_SUB_NAVIGATION_DATA: NavigationItem[] = [
       },
       {
         label: 'DevTools',
-        path: 'tools/devtools',
-        contentPath: 'tools/devtools',
+        children: [
+          {
+            label: 'Overview',
+            path: 'tools/devtools',
+            contentPath: 'tools/devtools/overview',
+          },
+          {
+            label: 'Components',
+            path: 'tools/devtools/component',
+            contentPath: 'tools/devtools/component',
+          },
+          {
+            label: 'Profiler',
+            path: 'tools/devtools/profiler',
+            contentPath: 'tools/devtools/profiler',
+          },
+          // TODO: create those guides
+          // The signal debugging docs should also be added to the signal section
+          // {
+          //   label: 'Signals',
+          //   path: 'tools/devtools/signals',
+          //   contentPath: 'tools/devtools/signals',
+          // },
+          // {
+          //   label: 'Router',
+          //   path: 'tools/devtools/router',
+          //   contentPath: 'tools/devtools/router',
+          // }
+        ],
       },
       {
         label: 'Language Service',

adev/src/assets/BUILD.bazel

@@ -41,6 +41,7 @@ copy_to_directory(
         "//adev/src/content/reference/migrations",
         "//adev/src/content/tools",
         "//adev/src/content/tools/cli",
+        "//adev/src/content/tools/devtools",
         "//adev/src/content/tools/libraries",
         "//adev/src/content/tutorials",
         "//adev/src/content/tutorials/deferrable-views:deferrable-views-guides",

adev/src/content/tools/devtools.md

@@ -0,0 +1,12 @@
+load("//adev/shared-docs:index.bzl", "generate_guides")
+
+generate_guides(
+    name = "devtools",
+    srcs = glob([
+        "*.md",
+    ]),
+    data = [
+        "//adev/src/content/examples",
+    ],
+    visibility = ["//adev:__subpackages__"],
+)