docs: add hybrid rendering API guide (angular#58445)

This commit introduces a new guide for hybrid rendering APIs, which are currently in developer preview. This documentation provides insights into the usage and features of the APIs, helping developers understand their capabilities and limitations during the preview phase.

PR Close angular#58445

Author: alan-agius4

adev/shared-docs/pipeline/api-gen/extraction/index.ts

@@ -52,6 +52,8 @@ function main() {
     rootDir: '.',
     skipLibCheck: true,
     target: ts.ScriptTarget.ES2022,
+    // This is necessary because otherwise types that include `| null` are not included in the documentation.
+    strictNullChecks: true,
     moduleResolution: ts.ModuleResolutionKind.NodeNext,
     experimentalDecorators: true,
   };

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

@@ -455,12 +455,12 @@ const DOCS_SUB_NAVIGATION_DATA: NavigationItem[] = [
             contentPath: 'guide/defer',
           },
           {
-            label: 'Image Optimization',
+            label: 'Image optimization',
             path: 'guide/image-optimization',
             contentPath: 'guide/image-optimization',
           },
           {
-            label: 'Server-side Rendering',
+            label: 'Server-side rendering',
             path: 'guide/ssr',
             contentPath: 'guide/ssr',
           },
@@ -469,6 +469,11 @@ const DOCS_SUB_NAVIGATION_DATA: NavigationItem[] = [
             path: 'guide/prerendering',
             contentPath: 'guide/prerendering',
           },
+          {
+            label: 'Hybrid rendering',
+            path: 'guide/hybrid-rendering',
+            contentPath: 'guide/hybrid-rendering',
+          },
           {
             label: 'Hydration',
             path: 'guide/hydration',