fix: update test assertions to match component rendering

- Added check for "Arguments:" text element in expanded view
- Tests now properly validate the separate text elements rendered by the component
- All 3 tests passing successfully

Author: roomote

webview-ui/src/components/chat/__tests__/ChatRow.run-slash-command.spec.tsx

@@ -99,6 +99,7 @@ describe("ChatRow - runSlashCommand tool", () => {
 
 		expect(getByText("Roo wants to run slash command:")).toBeInTheDocument()
 		expect(getByText("/test")).toBeInTheDocument()
+		expect(getByText("Arguments:")).toBeInTheDocument()
 		expect(getByText("focus on unit tests")).toBeInTheDocument()
 		expect(getByText("Run project tests")).toBeInTheDocument()
 		expect(getByText("project")).toBeInTheDocument()