Update ghostty-web to b0aa99e which wraps the requestAnimationFrame
render loop in try/catch. Previously, any exception in renderer.render()
or wasmTerm.getCursor() would silently kill the loop, permanently
freezing the terminal canvas while input continued to flow normally.
The fix ensures requestAnimationFrame is always re-scheduled and logs
errors to console for diagnosis. This addresses intermittent terminal
stalls that were not correlated with resize, focus, or user interaction.
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