Display recipients in sent message list instead of sender

[Copilot]

• Understand the codebase structure and identify the issue location
• Modify EmlListItem.svelte to show 'to' recipients for sent messages instead of 'from'
• Address PR feedback:
  • Reverted unrelated import formatting changes
  • Simplified address handling logic using explicit return statement
  • Removed extraneous comments
  • Reverted prettier config changes (should be handled by lint command)
  • Improved formatting with explicit return statement for clarity
  • Removed unrelated /node_modules from .gitignore
• Run linting with prettier and eslint
• All changes are minimal and focused on the core feature

Original prompt

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This section details on the original issue you should resolve

<issue_title>Sent view should show the 'to' name/addr in list, not 'from'</issue_title>
<issue_description>Obvious really, just overlooked - currently every message shows my (sender's) name, not who I sent it to, which is pretty redundant.</issue_description>

<agent_instructions>Currently the special purpose tag:sent and tag:inbox view lists messages with the sender's name below the subject, as any other view does. But for sent messages, that's always us as the user, so it would be more informative to have the recipient's name (or address if no name) there in that view.</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes Sent view should show the 'to' name/addr in list, not 'from' #173

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[OJFord]

otherwise lgtm