Instead of showing raw base64 JSON for Anthropic's computer use tool,
render the screenshot as an inline image. The image is clickable to open
at full resolution in a new tab.
## Changes
- **ComputerTool.tsx** — New component that renders base64 image data as
an `<img>` tag
- **Tool.tsx** — Added `ComputerRenderer` handling both single-object
and array-of-blocks result shapes
- **ToolIcon.tsx** — Added `MonitorIcon` for the `computer` tool
- **ToolLabel.tsx** — Added \Screenshot\ label for the `computer` tool
Thomas Kosiewski
d6306461bb