Fix: date/time-trigger syntax leaking into filename on "New note from Card"

[yhbarve]

Summary

Fixes a bug where dates/times leak raw @{...} syntax into filenames (and get silently deleted from the card) when using "New note from card."

Fixes #1137.

The bug

The "New Note from Card" handler sanitized embeds, wikilinks, and tags when building the new note's filename, but never stripped date/time-trigger syntax (e.g. @{2026-07-15}). That raw syntax leaked directly into the generated filename and into the wikilink text inserted back into the card.

Before (bug):

The fix

• Stripped date/time tokens specifically for filename generation, using the same trigger-aware regex pattern already used by the existing "Remove date" menu action, so it respects custom date-trigger/time-trigger settings.
• Also preserves the date/time on the card itself: rather than replacing the entire raw title line (date included) with the new link, only the date/time-free portion of the title is now matched and replaced — so the date badge survives right next to the link instead of being silently deleted.
• Falls back to the original whole-line replacement if the title is only a date/time token, since there's no other text to anchor the link to.

After (fix):

Testing

• Verified with default @ date/time triggers and custom ones (e.g. @@@, $$)
• Confirmed cards without dates are unaffected (filename and card text unchanged)
• Confirmed the date badge survives conversion and daily-note links still work when link-date-to-daily-note is enabled