feat(develop): Add page context

Author: mydea

develop-docs/sdk/data-model/event-payloads/contexts.mdx

@@ -778,6 +778,42 @@ envelope endpoint.
 }
 ```
 
+## Page Context
+
+Page context contains information about the page that the event occurred on.
+
+`url`
+
+: **Required.** The URL of the page that the event occurred on.
+
+- Example: `https://sentry.io/issues?page=1`
+
+`user_agent`
+
+: _Optional_. The user agent of the page that the event occurred on.
+
+- Example: `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36`
+
+`referer`
+
+: _Optional_. The referer of the page that the event occurred on.
+
+- Example: `https://sentry.io/`
+
+### Example Page Context
+
+```json
+{
+  "contexts": {
+    "page": {
+      "url": "https://sentry.io/issues?page=1",
+      "user_agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36",
+      "referer": "https://sentry.io/"
+    }
+  }
+}
+```
+
 ## Response Context
 
 Response context contains information about the HTTP response associated with the event.
@@ -829,7 +865,7 @@ The required field is `package` which should contain the package or framework wh
   "contexts": {
     "missing_instrumentation": {
       "package": "express",
-      "javascript.is_cjs": true,
+      "javascript.is_cjs": true
     }
   }
 }
@@ -851,7 +887,6 @@ The feature flag context contains information about the flags evaluated prior to
 
 - Example: `false`
 
-
 ### Example Feature Flag Context
 
 ```json

develop-docs/sdk/data-model/event-payloads/request.mdx

@@ -4,9 +4,8 @@ sidebar_order: 8
 ---
 
 The Request interface contains information on a HTTP request related to the
-event. In client SDKs, this can be an outgoing request, or the request that
-rendered the current web page. On server SDKs, this could be the incoming web
-request that is being handled.
+event. In client SDKs, this can be an outgoing request (use the [page context](../contexts/#page-context) to track the page that the request was made from).
+On server SDKs, this could be the incoming web request that is being handled.
 
 The data variable should only contain the request body (not the query string).
 It can either be a dictionary (for standard HTTP requests) or a raw request