Escape live widget post titles

[lancewillett]

Render Live Posts and Comments widget post titles as text at the final template boundary. This preserves translated untitled labels and long-word shortening without reparsing title content as HTML.

Replaces #243 with a smaller fix that does not create an intermediate DOM tree.

Testing:

• npx grunt jshint
• Browser regression in the paired P2 source change

[lancewillett]

Before	After

The same Author-created title is shown before and after. The fixed widget displays the encoded markup as text while preserving title shortening and the untitled labels.

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_{Adversarial review · gpt-5.6-sol}