[ADF-2463] Moved core components to subfolder (#3062)

docs/core/cookie.service.md

@@ -0,0 +1,38 @@
+---
+Added: v2.0.0
+Status: Active
+---
+# Cookie service
+
+Stores key-value data items as browser cookies.
+
+## Methods
+
+-   `isEnabled(): boolean`  
+    Checks if cookies are enabled.  
+
+-   `getItem(key: string): string`  
+    Retrieves a cookie by its key.  
+    -   `key` - Key to identify the cookie
+-   `setItem(key: string, data: string, expiration: Date | null, path: string | null)`  
+    Set a cookie.  
+    -   `key` - Key to identify the cookie
+    -   `data` - Data value to set for the cookie
+    -   `expiration` - Expiration date of the data
+    -   `path` - "Pathname" to store the cookie
+
+## Details
+
+This service uses browser [cookies](https://en.wikipedia.org/wiki/HTTP_cookie)
+to store data in the form of key-value pairs. An optional `expiration` date can be
+supplied for the cookie and a `path` can be used to reduce the chances of name
+clashes with cookies from other sources.
+
+Cookies have a storage size limit that varies between browsers but is often around
+4KB. Consider using [web storage](storage.service.md) if you need to store data
+beyond this size.
+
+## See also
+
+-   [Content service](content.service.md)
+-   [Storage service](storage.service.md)