feat(develop): Allow to pass user_agent as browser context

Author: mydea

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

@@ -402,6 +402,12 @@ The `type` and default key is `"browser"`.
 
 : _Optional_. Version string of the browser.
 
+`user_agent`
+
+: _Optional_. The user agent of the browser. If this is set, `name` may also be omitted (as it will be derived from the user agent).
+
+- 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"`
+
 ## GPU Context
 
 GPU context describes the GPU of the device.