add: overview document

docs/en/docs-nav.json

@@ -1226,6 +1226,10 @@
             {
               "text": "Angular",
               "items": [
+                {
+                  "text": "Overview",
+                  "path": "framework/ui/angular/overview.md"
+                },
                 {
                   "text": "Quick Start",
                   "path": "framework/ui/angular/quick-start.md"

docs/en/framework/ui/angular/overview.md

@@ -0,0 +1,14 @@
+# Angular UI
+
+[Angular](https://angular.dev/) is a framework for building interactive, client-side web UIs using [TypeScript](https://www.typescriptlang.org) and [NodeJS](https://nodejs.org).
+
+ABP Angular provides the infrastructure to communicate with the ABP backend and offers utilities to simplify frontend development. We’ll explore and dive into the details under the following main topics:
+
+- Development
+- Core Functionality
+- Utilities
+- Customization
+- Components
+
+
+You can also make a [Quick Start](./quick-start.md)