feat: add persistent word-wrap setting for chat code blocks and tables

[imabdulazeez]

What Changed

Added a Wrap code blocks and tables client setting that controls whether long content in chat messages wraps by default — covering both code blocks and tables.

• New chatWordWrap boolean in the client settings schema (ClientSettingsSchema + ClientSettingsPatch), defaulting to true. (Renamed from the earlier chatCodeBlockWordWrap now that it governs more than code blocks.)
• MarkdownCodeBlock seeds its per-block wrapped state from this setting instead of always starting unwrapped.
• MarkdownTable now seeds its expanded (wrap) state from the same setting, so wide tables render with wrapped cells by default instead of truncating. The footer expand/collapse toggle still works for ad-hoc overrides.
• Added a Wrap code blocks and tables row to the General settings panel (Switch + per-setting reset button), and wired it into the settings restore/reset flow and the "modified settings" summary.
• Removed the orphaned data-wrap table CSS; tables wrap via the existing [data-expanded="true"] styling.
• Updated the desktop ClientSettings test fixture to the renamed field.

Why

Long, unwrapped lines in chat code blocks and wide table cells force horizontal scrolling, which is awkward to read. Previously each block/table started in its non-wrapped state with users having to toggle every one individually. This adds a single, persisted preference so users can make wrapping the default across both content types, while keeping the per-element toggle for exceptions. Default is true so the more readable behavior is on out of the box.

Screenshots

Settings → General — new "Wrap code blocks and tables" toggle

Chat code block + table with wrap default applied

Checklist

• This PR is small and focused
• I explained what changed and why
• I included before/after screenshots for any UI changes (after only)
• I included a video for animation/interaction changes

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