feat(browser-use): update viewport to 1920x1080 (#75)

Change browser window and viewport size from 1024x786 to 1920x1080 for
compatibility with kernel default viewport config.

## Changes
- Updated `window_size` from 1024x786 to 1920x1080
- Updated `viewport` from 1024x786 to 1920x1080

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> In `pkg/templates/python/browser-use/main.py`, the Browser session is
configured for a full HD layout.
> 
> - Updates `Browser` initialization to set `window_size` and `viewport`
from `1024x786` to `1920x1080`
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
9611fb2. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: dprevoznik

pkg/templates/python/browser-use/main.py

@@ -44,8 +44,8 @@ async def bu_task(ctx: kernel.KernelContext, input_data: TaskInput):
         browser = Browser(
             cdp_url=kernel_browser.cdp_ws_url,
             headless=False,
-            window_size={"width": 1024, "height": 786},
-            viewport={"width": 1024, "height": 786},
+            window_size={"width": 1920, "height": 1080},
+            viewport={"width": 1920, "height": 1080},
             device_scale_factor=1.0,
         )