* Remove unused marked JS dependency
* Remove unused redcarpet dependency
* Render inline code in card titles
Add card_html_title helper that HTML-escapes input then converts
backtick-wrapped text to <code> elements. Apply to card titles in
board preview, card detail, public views, and notification emails.
Style inline code elements in titles to match description styling.
Co-authored-by: Andy Smith <andy@37signals.com>
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Co-authored-by: Andy Smith <andy@37signals.com>
User flows when editing a card look like:
- Click "Edit" → the closure buttons are replaced by "Save changes"
- Submit card form → Saves and restores closure buttons
- Press ESC while editing → Cancels and restores closure buttons
Also, renamed for clarity:
- _title.html.erb → _content.html.erb
Co-Authored-By: Claude <noreply@anthropic.com>